improvement & bugfix
johndah4x0r
GitHub
parent
7d2d65bc80
commit
fca658d102
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@ -0,0 +1,231 @@
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#!/bin/bash
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# Linux Live Kit Improved v1.0
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# Original version: Linux Live Kit version 7
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# Modified/improved by: @johndah4x0r [terencedoesmc12 AT gmail DOT com]
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# Environment path
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export PATH="${PATH}:.:./tools:../tools"
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source ./.config || exit 1
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source ./livekitlib || exit 1
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# only root can continue, because only root can read all files from your system
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allow_only_root
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# Change directory to build environment
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CHANGEDIR="$(dirname $0)"
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echo "Changing current directory to $CHANGEDIR"
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CWD="$(pwd)"
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cd "$CHANGEDIR"
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# It's building time!
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clear
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echo_sign "BUILD SCRIPT"
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echo_livekit_msg "build: Doing a self-check..."
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# Start with 0 errors
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ERRS=0
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# Check if mksquashfs supports XZ compression
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if [ -z "$(mksquashfs 2>&1 | grep "Xdict-size")" ]; then
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echo_err "build: 'mksquashfs': not-avail / not-supported"
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(( ERRS+=1 ))
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else
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echo_livekit_msg "build: 'mksquashfs': avail + supported"
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fi
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# Check if either 'mkisofs' or 'genisoimage' exists
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MKISOFS="$(which mkisofs 2>/dev/null || \
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which genisoimage 2>/dev/null)"
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if [ -z "$MKISOFS" ]; then
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echo_err "build: 'mkisofs' / 'genisoimage': not-avail"
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# Hahaha! 'false'?!?!?
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MKISOFS="false"
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else
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echo_livekit_msg "build: '$(basename $MKISOFS)': avail"
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fi
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# Check if we have 'zip'
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ZIP_CMD="$(which zip 2>/dev/null)"
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if [ -z "$ZIP_CMD" ]; then
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# since a ZIP archive is the core, we have to go to fatal mode!
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echo_fatal "build: 'zip': not-avail"
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echo_fatal "build: 'zip': Critically needed!"
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(( ERRS+= 2 ))
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else
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echo_livekit_msg "build: 'zip': avail"
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fi
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if [ $ERRS -eq 0 ]; then
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echo_livekit_msg "build: Problems found: $ERRS"
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echo_livekit_msg "build: Self-check passed."
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else
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echo_err "build: Problems found: $ERRS"
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echo_err "build: Self-check failed!"
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echo_err "build: Please make sure that you have all needed packages installed!"
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exit 1
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fi
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echo_livekit_msg "build: Preparing to build..."
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clear
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echo " ==========================================="
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echo " Linux Live Kit version 2.0 (improved)"
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echo " ==========================================="
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echo " Live Kit information:"
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echo " > Kernel version: $KERNEL"
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echo " > Architecture: $ARCH"
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echo " > Live Kit name: $LIVEKITNAME"
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echo " > Bundle extension: '.$BEXT'"
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read -p "Press Enter to continue or press Ctrl-C to cancel... " junk
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# It's time to rock 'n roll!
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clear
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# Generate initramfs image (cpio-xz archive)
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echo_livekit_msg "build: Generating initramfs CPIO-XZ image..."
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cd initramfs
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INITRAMFS="$(./gen-initramfs "$LIVEKITNAME")"
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cd ..
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# Prepare the Live Kit archive
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rm -Rf "$LIVEKITDATA"
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echo_livekit_msg "build: Preparing boot files..."
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BOOT="$LIVEKITDATA"/"$LIVEKITNAME"/boot
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mkdir -p "$BOOT"
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mkdir -p "$BOOT"/../changes
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mkdir -p "$BOOT"/../bundles
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mv "$INITRAMFS" $BOOT/initramfs.img
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cp bootfiles/* $BOOT
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# do substitution
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cat bootfiles/syslinux.cfg | sed -r "s:/boot/:/$LIVEKITNAME/boot/:" | \
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sed -r "s:MyLinux:$LIVEKITNAME:" > $BOOT/syslinux.cfg
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echo_livekit_msg "build: BootInstall.*: Replacing 'MyLinux' with '$LIVEKITNAME'..."
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cat bootfiles/BootInstall.bat | sed -r "s:/boot/:/$LIVEKITNAME/boot/:" | \
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sed -r "s:\\\\boot\\\\:\\\\$LIVEKITNAME\\\\boot\\\\:" | fgrep -iv "rem" | \
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sed -r "s:MyLinux:$LIVEKITNAME:" > $BOOT/BootInstall.bat
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cat bootfiles/BootInstall.sh | sed -r "s:MyLinux:$LIVEKITNAME:" > $BOOT/BootInstall.sh
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echo_livekit_msg "build: Copying kernel..."
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cp $VMLINUZ $BOOT/
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# Copy files from include_bund/, but
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# do not skip bundle creation
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#
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if [ -n "$(ls -A include_bund/ | grep ".$BEXT")" ]; then
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echo_livekit_msg "build: Copying bundles from include_bund/ ..."
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ls -A include_bund/ | grep ".$BEXT" | \
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while read BUND; do
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cp $BUND "$LIVEKITDATA"/"$LIVEKITNAME"/bundles/
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done
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fi
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# create compressed bundles
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for i in $MKMOD; do
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CMDOPT="$(get_exclude "$EXCLUDE" $i)"
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echolog "CMDOPT = $CMDOPT" >&2
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mkbund /$i $LIVEKITDATA/$LIVEKITNAME/00-main-$i.$BEXT \
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-keep-as-directory $CMDOPT
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done
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# copy rootcopy folder
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if [ -d rootcopy/ ]; then
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echo_livekit_msg "build: Copying contents of rootcopy/..."
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cp -a rootcopy/ $LIVEKITDATA/$LIVEKITNAME/
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fi
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TARGET=/mnt/z
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if [ ! -d $TARGET ]; then
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TARGET=/tmp/livekit-build/
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fi
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if [ ! -d $TARGET ]; then
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mkdir -p $TARGET &>/dev/null
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fi
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# Output file
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OUT_FILE="$LIVEKITNAME-$ARCH-$PID"
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# Checksum file
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SUM_FILE="$TARGET/CHECKSUMS-${OUT_FILE}.TXT"
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# Go to Live Kit build data
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cd "$LIVEKITDATA"
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# Create ISO image
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echo_livekit_msg "build: Creating ISO file for CD boot..."
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# How the F@-- can it be more compact than this!?!?
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"$MKISOFS" -o "$TARGET/$OUT_FILE.iso" -v -J \
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-R -D -A "$LIVEKITNAME" -V "$LIVEKITNAME" \
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-no-emul-boot -boot-info-table -boot-load-size 4 \
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-b "$LIVEKITNAME"/boot/isolinux.bin -c \
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"$LIVEKITNAME"/boot/isolinux.boot . &>/dev/null
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if [ $? -ne 0 ]; then
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echo_warn "build: Failed to generate ISO image!"
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SCAN=
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else
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echo_livekit_msg "build: ISO image: $OUT_FILE.iso"
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SCAN=1
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fi
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# Substitute 'mylinux' with $LIVEKITNAME
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cat "$CWD/bootinfo.txt" | fgrep -v "#" | \
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sed -r "s/mylinux/$LIVEKITNAME/" | sed -r "s/\$//" > readme.txt
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# Create ZIP archive for "universal" use
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echo_livekit_msg "build: Creating ZIP for USB boot..."
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rm -f "$TARGET/$OUT_FILE.zip"
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zip -0 -r "$TARGET/$OUT_FILE.zip" * &>/dev/null
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echo_livekit_msg "build: Output file: $OUT_FILE.zip"
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echo_livekit_msg "build: Cleaning up..."
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cd ..
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rm -Rf "$LIVEKITDATA"
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# just for aesthetics
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echo_livekit_msg "build: Process ID: $PID - Your results is in $TARGET"
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# Generate checksum(s)
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echo_livekit_msg "build: Generating MD5 checksums: Please wait..."
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if [ "$SCAN" ]; then
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MD5_ISO="$(md5sum $TARGET/$OUT_FILE.iso 2>/dev/null | cut -d ' ' -f 1)"
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else
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MD5_ISO="< FAILED TO GENERATE ISO IMAGE! >"
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fi
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MD5_ZIP="$(md5sum $TARGET/$OUT_FILE.zip 2>/dev/null | cut -d ' ' -f 1)"
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cat >"$SUM_FILE" <<EOF
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Linux Live Kit Improved
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----------------------------------------
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Date: `date`
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Process ID: $PID
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Live Kit name: $LIVEKITNAME
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MD5 Checksums for this build:
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+ $OUT_FILE.iso - $MD5_ISO
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+ $OUT_FILE.zip - $MD5_ZIP
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Have a nice day!
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EOF
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echo_livekit_msg "build: $OUT_FILE.iso: $MD5_ISO"
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echo_livekit_msg "build: $OUT_FILE.zip: $MD5_ZIP"
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# Done!
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echo_livekit_msg "Build process finished!"
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echo "Have a nice day!"
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read -p "Press Enter to continue..." junk
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cd "$CWD"
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clear
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@ -0,0 +1,130 @@
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#!/bin/bash
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# Generate initramfs image
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# Original author: Tomas M <http://www.linux-live.org/>
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# Modified by: 'JohnDaH4x0r' [terencedoesmc12 AT gmail DOT com]
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source ../.config
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INITRAMFS=/tmp/$LIVEKITNAME-initramfs-$PID
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# copy file to initramfs tree, including
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# all library dependencies (as shown by ldd)
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# $1 = file to copy (full path)
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copy_including_deps()
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{
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# if source doesn't exist or target exists, do nothing
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if [ ! -e "$1" -o -e "$INITRAMFS"/"$1" ]; then
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return
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fi
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cp -R --parents "$1" "$INITRAMFS"
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if [ -L "$1" ]; then
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DIR="$(dirname "$1")"
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LNK="$(readlink "$1")"
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copy_including_deps "$(cd "$DIR"; realpath -s "$LNK")"
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fi
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ldd "$1" 2>/dev/null | sed -r "s/.*=>|[(].*//g" | sed -r "s/^\\s+|\\s+\$//" \
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copy_including_deps "$LIB"
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done
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for MOD in $(find "$1" -type f | grep .ko); do
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for DEP in $(cat /$LMK/modules.dep | fgrep /$(basename $MOD):); do
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copy_including_deps "/$LMK/$DEP"
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done
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done
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shift
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if [ "$1" != "" ]; then
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copy_including_deps "$@"
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fi
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}
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rm -Rf $INITRAMFS
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mkdir -p $INITRAMFS/{bin,dev,etc,lib,lib64,mnt,proc,root,run,sys,tmp,usr,var/log}
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ln -s bin $INITRAMFS/sbin
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cd static
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./update
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cd ..
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cp static/{busybox,mount.dynfilefs,mount.ntfs-3g,eject} $INITRAMFS/bin
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chmod a+x $INITRAMFS/bin/{busybox,mount.*,eject}
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$INITRAMFS/bin/busybox | grep , | grep -v Copyright | tr "," " " | while read LINE; do
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for TOOL in $LINE; do
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if [ ! -e $INITRAMFS/bin/$TOOL ]; then
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ln -s busybox $INITRAMFS/bin/$TOOL
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fi
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done
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done
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rm -f $INITRAMFS/{s,}bin/init
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mknod $INITRAMFS/dev/console c 5 1
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mknod $INITRAMFS/dev/null c 1 3
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mknod $INITRAMFS/dev/ram0 b 1 0
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mknod $INITRAMFS/dev/tty1 c 4 1
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mknod $INITRAMFS/dev/tty2 c 4 2
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mknod $INITRAMFS/dev/tty3 c 4 3
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mknod $INITRAMFS/dev/tty4 c 4 4
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#copy_including_deps /usr/bin/strace
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#copy_including_deps /usr/bin/lsof
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copy_including_deps /$LMK/kernel/fs # all filesystems
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copy_including_deps /$LMK/kernel/drivers/staging/zsmalloc # needed by zram
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copy_including_deps /$LMK/kernel/drivers/block/zram
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copy_including_deps /$LMK/kernel/drivers/block/loop.*
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# usb drivers
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copy_including_deps /$LMK/kernel/drivers/usb/storage/usb-storage.*
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copy_including_deps /$LMK/kernel/drivers/usb/host
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copy_including_deps /$LMK/kernel/drivers/usb/common
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copy_including_deps /$LMK/kernel/drivers/usb/core
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copy_including_deps /$LMK/kernel/drivers/hid/usbhid
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copy_including_deps /$LMK/kernel/drivers/hid/hid.*
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copy_including_deps /$LMK/kernel/drivers/hid/uhid.*
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copy_including_deps /$LMK/kernel/drivers/hid/hid-generic.*
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# disk and cdrom drivers
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copy_including_deps /$LMK/kernel/drivers/cdrom
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copy_including_deps /$LMK/kernel/drivers/scsi/sr_mod.*
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copy_including_deps /$LMK/kernel/drivers/scsi/sd_mod.*
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copy_including_deps /$LMK/kernel/drivers/scsi/scsi_mod.*
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copy_including_deps /$LMK/kernel/drivers/scsi/sg.*
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copy_including_deps /$LMK/kernel/drivers/ata
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# copy all custom-built modules
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copy_including_deps /$LMK/updates
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copy_including_deps /$LMK/modules.*
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find $INITRAMFS -name "*.ko.gz" -exec gunzip {} \;
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# trim modules.order file. Perhaps we could remove it entirely
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MODULEORDER="$(cd "$INITRAMFS/$LMK/"; find -name "*.ko" | sed -r "s:^./::g" | tr "\n" "|" | sed -r "s:[.]:.:g")"
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cat $INITRAMFS/$LMK/modules.order | sed -r "s/.ko.gz\$/.ko/" | grep -E "$MODULEORDER"/foo/bar > $INITRAMFS/$LMK/_
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mv $INITRAMFS/$LMK/_ $INITRAMFS/$LMK/modules.order
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depmod -b $INITRAMFS $KERNEL
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echo "root::0:0::/root:/bin/bash" >$INITRAMFS/etc/passwd
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touch $INITRAMFS/etc/{m,fs}tab
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cp init $INITRAMFS
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chmod a+x $INITRAMFS/init
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cp cleanup $INITRAMFS/lib
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chmod a+x $INITRAMFS/lib/cleanup
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ln -s ../init $INITRAMFS/bin/init
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cp ../livekitlib $INITRAMFS/lib/
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cp ../.config $INITRAMFS/lib/
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cd $INITRAMFS
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find . -print | cpio -o -H newc 2>/dev/null | xz -f --extreme --check=crc32 >$INITRAMFS.img
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echo $INITRAMFS.img
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cd ..
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rm -Rf $INITRAMFS
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#mv $INITRAMFS.img /tmp/initrfs.img
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@ -0,0 +1,93 @@
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||||||
|
#!/bin/sh
|
||||||
|
# Initial script for Linux Live Kit / Linux Live Kit Improved
|
||||||
|
# Modifier: "JohnDaH4x0r"
|
||||||
|
|
||||||
|
# Modify and export/declare new PATH
|
||||||
|
export PATH=.:/:/usr/sbin:/usr/bin:/sbin:/bin
|
||||||
|
|
||||||
|
# Source Live Kit library script
|
||||||
|
. /lib/.config
|
||||||
|
. /lib/livekitlib
|
||||||
|
|
||||||
|
# Declare start of 'init' state
|
||||||
|
clear
|
||||||
|
echo_sign "INIT START"
|
||||||
|
|
||||||
|
# Run switch_root: initramfs -> tmpfs
|
||||||
|
transfer_initramfs
|
||||||
|
|
||||||
|
# Directory variables pointing to /memory
|
||||||
|
MEMORY=/memory
|
||||||
|
CHANGES=$MEMORY/changes
|
||||||
|
UNION=$MEMORY/union
|
||||||
|
DATAMNT=$MEMORY/data
|
||||||
|
BUNDLES=$MEMORY/bundles
|
||||||
|
|
||||||
|
# Initliaise /proc, /sys and such
|
||||||
|
init_proc_sysfs
|
||||||
|
|
||||||
|
# Initialise debugging if requested
|
||||||
|
debug_start
|
||||||
|
dbg_shell_start
|
||||||
|
|
||||||
|
# 1st debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Initialise important kernel modules
|
||||||
|
init_devs
|
||||||
|
init_aufs
|
||||||
|
init_zram
|
||||||
|
|
||||||
|
# Then, modprobe everything
|
||||||
|
modprobe_everything
|
||||||
|
|
||||||
|
# Find data dir with filesystem bundles
|
||||||
|
# NEW:
|
||||||
|
# Only 15 seconds before timeout, to minimize the
|
||||||
|
# pain of waiting a "whole" minute.
|
||||||
|
#
|
||||||
|
DATA="$(find_data 15 "$DATAMNT")"
|
||||||
|
|
||||||
|
# 2nd debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Setup persistent changes
|
||||||
|
persistent_changes "$DATA" "$CHANGES"
|
||||||
|
|
||||||
|
# 3rd debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Copy data to RAM if requested by user
|
||||||
|
DATA="$(copy_to_ram "$DATA" "$CHANGES")"
|
||||||
|
|
||||||
|
# Setup an empty union
|
||||||
|
init_union "$CHANGES" "$UNION"
|
||||||
|
|
||||||
|
# 4th debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Append bundles to union
|
||||||
|
union_append_bundles "$DATA" "$BUNDLES" "$UNION"
|
||||||
|
|
||||||
|
# 5th debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Copy contents of 'rootcopy/'
|
||||||
|
copy_rootcopy_content "$DATA" "$UNION"
|
||||||
|
|
||||||
|
# Generate a basic 'fstab' with the core filesystems
|
||||||
|
fstab_create "$UNION"
|
||||||
|
|
||||||
|
# 6th and final debug shell interval
|
||||||
|
debug_shell
|
||||||
|
|
||||||
|
# Declare the end of first 'init' state
|
||||||
|
clear
|
||||||
|
echo_sign "INIT END"
|
||||||
|
|
||||||
|
# Change root to main OS and let the 'init' in the
|
||||||
|
# main OS do the rest...
|
||||||
|
change_root "$UNION"
|
||||||
|
|
||||||
|
# < ======== NOTHING SHOULD GO OVER THIS LINE! ======== >
|
||||||
|
fatal "Unknown error!"
|
||||||
|
|
@ -0,0 +1,784 @@
|
||||||
|
#!/bin/sh
|
||||||
|
|
||||||
|
# Functions library :: for Linux Live Kit scripts
|
||||||
|
# Original author: Tomas M. <http://www.linux-live.org>
|
||||||
|
# Modified by: 'JohnDaH4x0r' <terencedoesmc12 AT gmail DOT com>
|
||||||
|
|
||||||
|
# related to build script
|
||||||
|
# get_exclude: Generate exclude arguments for 'mksquashfs'
|
||||||
|
# $1: the exclude list ("$EXCLUDE", if you use .config)
|
||||||
|
|
||||||
|
get_exclude()
|
||||||
|
{
|
||||||
|
EXCLUDE_LIST="$1"
|
||||||
|
PARENT_DIR="$(echo "$2" | tr -s "/")"
|
||||||
|
|
||||||
|
if [ -z "$PARENT_DIR" ]; then
|
||||||
|
return 1
|
||||||
|
elif [ "$PARENT_DIR" = "/" ]; then
|
||||||
|
return 1
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo "$EXCLUDE_LIST" | tr " " "\n" | grep "$PARENT_DIR" \
|
||||||
|
| while read KEY; do
|
||||||
|
echo -n "-e $KEY "
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# NOTE: DO NOT TOUCH THE ESCAPE CHARACTERS!
|
||||||
|
BLUE="[1;34m"
|
||||||
|
YELLOW="[1;33m"
|
||||||
|
ORANGE="[0;33m"
|
||||||
|
GREEN="[1;32m"
|
||||||
|
BOLD="[0;1m"
|
||||||
|
RED="[1;31m"
|
||||||
|
NC="[0m"
|
||||||
|
|
||||||
|
# debug related
|
||||||
|
debug_start()
|
||||||
|
{
|
||||||
|
if grep -q 'debug' /proc/cmdline; then
|
||||||
|
DEBUG_IS_ENABLED=1
|
||||||
|
else
|
||||||
|
DEBUG_IS_ENABLED=
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
dbg_shell_start()
|
||||||
|
{
|
||||||
|
if grep -q 'dbg_shell' /proc/cmdline; then
|
||||||
|
DBG_SHELL=1
|
||||||
|
else
|
||||||
|
DBG_SHELL=
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
debug_log()
|
||||||
|
{
|
||||||
|
if [ "$DEBUG_IS_ENABLED" ]; then
|
||||||
|
echo "[${GREEN}"' debug '"${NC}]: $@" >&2
|
||||||
|
log "debug_log: $*"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo related functions
|
||||||
|
|
||||||
|
# echo fatal tag
|
||||||
|
# $1 = text to show
|
||||||
|
echo_fatal()
|
||||||
|
{
|
||||||
|
echo "[${RED}"' fatal '"${NC}] $@" >&2
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo bold
|
||||||
|
# $1 = text to show
|
||||||
|
#
|
||||||
|
echo_bold()
|
||||||
|
{
|
||||||
|
echo "$BOLD""$@""$NC"
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo livekit tag
|
||||||
|
echo_livekit()
|
||||||
|
{
|
||||||
|
echo "[${BLUE}"'livekit'"${NC}] "
|
||||||
|
}
|
||||||
|
|
||||||
|
echo_livekit_msg()
|
||||||
|
{
|
||||||
|
echo "[${BLUE}"'livekit'"${NC}] $@"
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo error
|
||||||
|
echo_err()
|
||||||
|
{
|
||||||
|
echo "[${RED}"' error '"${NC}] $@" >&2
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo warn
|
||||||
|
echo_warn()
|
||||||
|
{
|
||||||
|
echo "[${YELLOW}"' warn! '"${NC}] $@" >&2
|
||||||
|
}
|
||||||
|
|
||||||
|
# echo signature
|
||||||
|
echo_sign()
|
||||||
|
{
|
||||||
|
echo "${BOLD}"' Linux Live Kit Improved v1.0 - '"$* ${NC}"
|
||||||
|
}
|
||||||
|
|
||||||
|
# log - store given text in /var/log/livedbg
|
||||||
|
log()
|
||||||
|
{
|
||||||
|
echo "$@" 2>/dev/null >>/var/log/livekit-log
|
||||||
|
}
|
||||||
|
|
||||||
|
echolog()
|
||||||
|
{
|
||||||
|
echo "$@"
|
||||||
|
log "echolog: $@"
|
||||||
|
}
|
||||||
|
|
||||||
|
# show information about the debug shell
|
||||||
|
show_debug_banner()
|
||||||
|
{
|
||||||
|
echo_sign "DEBUGGING MODE"
|
||||||
|
echo "The root shell is prepared for you!" >&2
|
||||||
|
echo "Type your desired commands or press Ctrl-D to continue booting." >&2
|
||||||
|
echo >&2
|
||||||
|
}
|
||||||
|
|
||||||
|
# debug_shell
|
||||||
|
# executed when debug boot parameter is present
|
||||||
|
#
|
||||||
|
debug_shell()
|
||||||
|
{
|
||||||
|
if [ "$DBG_SHELL" ]; then
|
||||||
|
show_debug_banner
|
||||||
|
setsid sh -c 'exec sh < /dev/tty1 >/dev/tty1 2>&1'
|
||||||
|
echo
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
fatal()
|
||||||
|
{
|
||||||
|
log "FatalError: $@"
|
||||||
|
echo_fatal "$@"
|
||||||
|
echo_sign "EMERGENCY MODE" >&2
|
||||||
|
echo_bold "Please consult /var/log/livekit-log for more info." >&2
|
||||||
|
setsid sh -c 'exec sh < /dev/tty1 >/dev/tty1 2>&1'
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# test if the script is started by root user. If not, exit
|
||||||
|
#
|
||||||
|
allow_only_root()
|
||||||
|
{
|
||||||
|
if [ "0$UID" -ne 0 ]; then
|
||||||
|
echo_err "Only root can run $(basename $0)"; exit 1
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Make bundle
|
||||||
|
# call mksquashfs with apropriate arguments
|
||||||
|
# $1 = directory which will be compressed to squashfs bundle
|
||||||
|
# $2 = output file
|
||||||
|
# $3..$9 = optional arguments like -keep-as-directory or -b 123456789
|
||||||
|
#
|
||||||
|
mkbund()
|
||||||
|
{
|
||||||
|
debug_log "mkbund" "$*"
|
||||||
|
|
||||||
|
if [ -e "$2" ]; then
|
||||||
|
echo_warn "mkbund: $(basename $2): File already exists!"
|
||||||
|
echo_warn "mkbund: $(basename $2): Deleting file..."
|
||||||
|
rm -f "$2"
|
||||||
|
else
|
||||||
|
echo_livekit_msg "mkbund: $(basename $2): Making new bundle..."
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo_livekit_msg "mkbund: SquashFS compression: 1024k - XZ" >&2
|
||||||
|
echo_livekit_msg "mkbund: $(basename $2): Compressing bundle..." >&2
|
||||||
|
mksquashfs "$1" "$2" -comp xz -b 1024k $3 $4 $5 $6 $7 $8 $9 >/dev/null || \
|
||||||
|
(echo_err "mkbund: Failed to make bundle!" && exit 1)
|
||||||
|
}
|
||||||
|
|
||||||
|
# Now, for the Live Kit system-related stuff
|
||||||
|
|
||||||
|
# get value of kernel cmdline parameter $1
|
||||||
|
# $1 = parameter to search for
|
||||||
|
#
|
||||||
|
cmdline_value()
|
||||||
|
{
|
||||||
|
cat /proc/cmdline | egrep -o "(^|[[:space:]])$1=[^[:space:]]+" | \
|
||||||
|
tr -d " " | cut -d "=" -f 2- | tail -n 1
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# Move entire initramfs tree to tmpfs mount.
|
||||||
|
# It's a bit tricky but is necessray to enable pivot_root
|
||||||
|
# even for initramfs boot image
|
||||||
|
#
|
||||||
|
transfer_initramfs()
|
||||||
|
{
|
||||||
|
if [ ! -r /lib/esc_initramfs.sgn ]; then
|
||||||
|
echo_livekit >&2
|
||||||
|
echo "Switching root from initramfs to tmpfs..." >&2
|
||||||
|
SWITCH=/m # one letter directory
|
||||||
|
mkdir -p $SWITCH
|
||||||
|
mount -t tmpfs -o size="100%" tmpfs "$SWITCH"
|
||||||
|
cp -a /??* "$SWITCH" 2>/dev/null # only copy two-and-more-letter directories
|
||||||
|
cd $SWITCH
|
||||||
|
echo "This file indicates that we successfully escaped initramfs" >"$SWITCH"/lib/esc_initramfs.sgn
|
||||||
|
exec switch_root -c /dev/console . "$0"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# mount virtual filesystems like proc, sys and such
|
||||||
|
#
|
||||||
|
init_proc_sysfs()
|
||||||
|
{
|
||||||
|
debug_log "init_proc_sysfs" "$*"
|
||||||
|
mkdir -p /proc /sys /etc "$MEMORY"
|
||||||
|
mount -n -t proc proc /proc
|
||||||
|
echo "0" >/proc/sys/kernel/printk
|
||||||
|
mount -n -t sysfs sysfs /sys
|
||||||
|
mount -n -o remount,rw rootfs /
|
||||||
|
ln -sf /proc/mounts /etc/mtab
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# modprobe all modules found in initial ramdisk
|
||||||
|
modprobe_everything()
|
||||||
|
{
|
||||||
|
debug_log "modprobe_everything" "$*"
|
||||||
|
|
||||||
|
echo_livekit_msg "Probing for hardware..." >&2
|
||||||
|
|
||||||
|
find /lib/modules/ | fgrep '.ko' | xargs -n 1 modprobe 2>/dev/null
|
||||||
|
refresh_devs
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
refresh_devs()
|
||||||
|
{
|
||||||
|
debug_log "refresh_devs" "$*"
|
||||||
|
if [ -r /proc/sys/kernel/hotplug ]; then
|
||||||
|
echo /sbin/mdev > /proc/sys/kernel/hotplug
|
||||||
|
fi
|
||||||
|
mdev -s
|
||||||
|
}
|
||||||
|
|
||||||
|
# make sure some devices are there
|
||||||
|
init_devs()
|
||||||
|
{
|
||||||
|
debug_log "init_devs" "$*"
|
||||||
|
modprobe zram 2>/dev/null
|
||||||
|
modprobe loop 2>/dev/null
|
||||||
|
modprobe squashfs 2>/dev/null
|
||||||
|
modprobe fuse 2>/dev/null
|
||||||
|
refresh_devs
|
||||||
|
}
|
||||||
|
|
||||||
|
# Activate zram (auto-compression of RAM)
|
||||||
|
# Compressed RAM consumes 1/2 or even 1/4 of original size
|
||||||
|
# Setup static size of 500MB
|
||||||
|
#
|
||||||
|
init_zram()
|
||||||
|
{
|
||||||
|
debug_log "init_zram" "$*"
|
||||||
|
echo_livekit_msg "Setting up ZRAM as swap if available..."
|
||||||
|
if [ -r /sys/block/zram0/disksize ]; then
|
||||||
|
echo 536870912 > /sys/block/zram0/disksize # 512MB
|
||||||
|
mkswap /dev/zram0 >/dev/null
|
||||||
|
swapon /dev/zram0 -p 32767
|
||||||
|
echo 100 > /proc/sys/vm/swappiness
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# load the AUFS kernel module if needed
|
||||||
|
#
|
||||||
|
init_aufs()
|
||||||
|
{
|
||||||
|
debug_log "init_aufs" "$*"
|
||||||
|
|
||||||
|
# Prepare for error messages
|
||||||
|
echo >>/var/log/livkekit-log
|
||||||
|
|
||||||
|
modprobe aufs 2>/var/log/livekit-log
|
||||||
|
|
||||||
|
# If aufs module failed to load, panic immidiately
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
fatal "Failed to load AUFS module!"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# finally, refresh all devices
|
||||||
|
refresh_devs
|
||||||
|
}
|
||||||
|
|
||||||
|
# Setup empty union
|
||||||
|
# $1 = changes directory (ramfs or persistent changes)
|
||||||
|
# $2 = union directory where to mount the union
|
||||||
|
#
|
||||||
|
init_union()
|
||||||
|
{
|
||||||
|
debug_log "init_union" "$*"
|
||||||
|
|
||||||
|
echo_livekit_msg "Initialising AUFS union..."
|
||||||
|
mkdir -p "$1"
|
||||||
|
mkdir -p "$2"
|
||||||
|
|
||||||
|
# Prepare for error messages
|
||||||
|
echo >>/var/log/livekit-log
|
||||||
|
|
||||||
|
mount -t aufs -o xino="/.xino",trunc_xino,br="$1" aufs "$2" >/var/log/livekit-log 2>&1
|
||||||
|
|
||||||
|
# If failed to init union, panic
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
fatal "Failed to initialise AUFS union!"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Return device mounted for given directory
|
||||||
|
# $1 = directory
|
||||||
|
#
|
||||||
|
mounted_device()
|
||||||
|
{
|
||||||
|
debug_log "mounted_device" "$*"
|
||||||
|
|
||||||
|
local MNT TARGET
|
||||||
|
MNT="$1"
|
||||||
|
while [ "$MNT" != "/" -a "$MNT" != "." -a "$MNT" != "" ]; do
|
||||||
|
TARGET="$(grep -F " $MNT " /proc/mounts | cut -d " " -f 1)"
|
||||||
|
if [ "$TARGET" != "" ]; then
|
||||||
|
echo "$TARGET"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
MNT="$(dirname "$MNT")"
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# Return mounted dir for given directory
|
||||||
|
# $1 = directory
|
||||||
|
#
|
||||||
|
mounted_dir()
|
||||||
|
{
|
||||||
|
debug_log "mounted_dir" "$*"
|
||||||
|
|
||||||
|
local MNT
|
||||||
|
MNT="$1"
|
||||||
|
while [ "$MNT" != "/" -a "$MNT" != "." -a "$MNT" != "" ]; do
|
||||||
|
if mountpoint -q "$MNT" 2>/dev/null; then
|
||||||
|
echo "$MNT"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
MNT="$(dirname "$MNT")"
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# Make sure to mount FAT12/16/32 using vfat
|
||||||
|
# in order to support long filenames
|
||||||
|
# $1 = device
|
||||||
|
#
|
||||||
|
device_bestfs()
|
||||||
|
{
|
||||||
|
debug_log "device_bestfs" "$*"
|
||||||
|
local FS
|
||||||
|
|
||||||
|
FS="$(blkid "$1" | sed -r "s/.*TYPE=//" | tr -d '"' | \
|
||||||
|
tr "[A-Z]" "[a-z]" | cut -d ' ' -f 1)"
|
||||||
|
if [ "$FS" = "msdos" -o "$FS" = "fat" ]; then
|
||||||
|
FS="vfat"
|
||||||
|
elif [ "$FS" = "ntfs" ]; then
|
||||||
|
FS="ntfs-3g"
|
||||||
|
else
|
||||||
|
FS="$FS"
|
||||||
|
fi
|
||||||
|
echo "-t $FS"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Filesystem options for mount
|
||||||
|
# $1 = filesystem or '-t filesystem'
|
||||||
|
#
|
||||||
|
fs_options()
|
||||||
|
{
|
||||||
|
debug_log "fs_options" "$*"
|
||||||
|
|
||||||
|
if [ "$1" = "-t" ]; then
|
||||||
|
shift
|
||||||
|
fi
|
||||||
|
if [ "$1" = "vfat" ]; then
|
||||||
|
echo "-o check=s,shortname=mixed,iocharset=utf8"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# Modprobe network kernel modules until a working driver is found.
|
||||||
|
# These drivers are (or used to be) probed in Slackware's initrd.
|
||||||
|
# The function returns the first device found, yet it doesn't have
|
||||||
|
# to be a working one, eg. if the computer has two network interfaces
|
||||||
|
# and ethernet cable is plugged only to one of them.
|
||||||
|
#
|
||||||
|
init_network_dev()
|
||||||
|
{
|
||||||
|
debug_log "init_network_dev" "$*"
|
||||||
|
echo_livekit_msg "Preparing networking device(s)..." >&2
|
||||||
|
local MODULE ETH
|
||||||
|
|
||||||
|
for MODULE in 3c59x acenic de4x5 e1000 e1000e e100 epic100 hp100 \
|
||||||
|
ne2k-pci pcnet32 8139too 8139cp tulip via-rhine r8169 atl1e yellowfin \
|
||||||
|
tg3 dl2k ns83820 atl1 b44 bnx2 skge sky2 tulip depca 3c501 3c503 \
|
||||||
|
3c505 3c507 3c509 3c515 ac3200 at1700 cosa cs89x0 de600 de620 e2100 \
|
||||||
|
eepro eexpress eth16i ewrk3 forcedeth hostess_sv11 hp-plus hp ni52 \
|
||||||
|
ni65 sb1000 sealevel smc-ultra sis900 smc9194 wd; do
|
||||||
|
modprobe $MODULE 2>/dev/null
|
||||||
|
ETH="$(cat /proc/net/dev | grep : | grep -v lo: | cut -d : -f 1 | tr -d " " | head -n 1)"
|
||||||
|
if [ "$ETH" != "" ]; then
|
||||||
|
echo "$ETH"
|
||||||
|
return 0
|
||||||
|
fi
|
||||||
|
rmmod $MODULE 2>/dev/null
|
||||||
|
done
|
||||||
|
|
||||||
|
# If we are here, none of the above specified modules worked.
|
||||||
|
# As a last chance, try to modprobe everything.
|
||||||
|
echo_warn "No networking kernel module found!"
|
||||||
|
modprobe_everything
|
||||||
|
cat /proc/net/dev | grep ':' | grep -v 'lo:' | cut -d : -f 1 | tr -d " " | head -n 1
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# Download data from tftp
|
||||||
|
# $1 = target (store downloaded files there)
|
||||||
|
#
|
||||||
|
download_data_pxe()
|
||||||
|
{
|
||||||
|
debug_log "download_data_pxe" "$*"
|
||||||
|
local CMD CLIENT SERVER GW MASK PORT ETH PROTOCOL
|
||||||
|
|
||||||
|
mkdir -p "$1/$LIVEKITNAME"
|
||||||
|
|
||||||
|
cmdline_value ip | while IFS=":" read CLIENT SERVER GW MASK PORT; do
|
||||||
|
echo_livekit_msg "Downloading files from ${SERVER}..." >&2
|
||||||
|
|
||||||
|
ETH=$(init_network_dev)
|
||||||
|
if [ "$PORT" = "" ]; then
|
||||||
|
PORT="7529"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# set IP address as given by boot paramter
|
||||||
|
if [ -n "$CLIENT" ] && [ -n "$MASK" ]; then
|
||||||
|
ifconfig $ETH "$CLIENT" netmask "$MASK"
|
||||||
|
route add default gw "$GW"
|
||||||
|
else
|
||||||
|
# if client ip is unknown, try to get a DHCP lease
|
||||||
|
udhcpc -i $ETH -f -q
|
||||||
|
fi
|
||||||
|
|
||||||
|
# well known IP address of Google public DNS service
|
||||||
|
echo nameserver 8.8.8.8 >> /etc/resolv.conf
|
||||||
|
|
||||||
|
PROTOCOL=http
|
||||||
|
wget -q -O "$1/PXEFILELIST" "http://$SERVER:$PORT/PXEFILELIST?$(uname -r):$(uname -m)"
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
echo_warn "Failed to download from http://${SERVER}:${PORT}!" >&2
|
||||||
|
echo_livekit_msg 'Downloading with TFTP protocol...' >&2
|
||||||
|
PROTOCOL=tftp
|
||||||
|
tftp -g -r PXEFILELIST -l "$1/PXEFILELIST" $SERVER
|
||||||
|
fi
|
||||||
|
|
||||||
|
cat "$1/PXEFILELIST" | while read FILE; do
|
||||||
|
if [ "$PROTOCOL" = "http" ]; then
|
||||||
|
echo_livekit_msg "PXE-HTTP: Downloading ${FILE}..." >&2
|
||||||
|
wget -O "$1/$LIVEKITNAME/$FILE" "http://$SERVER:$PORT/$FILE"
|
||||||
|
elif [ "$PROTOCOL" = "tftp" ]; then
|
||||||
|
echo_livekit_msg "PXE-TFTP: Downloading ${FILE}..." >&2
|
||||||
|
tftp -g -r $FILE -l "$1/$LIVEKITNAME/$FILE" $SERVER
|
||||||
|
fi
|
||||||
|
done
|
||||||
|
done
|
||||||
|
|
||||||
|
echo "$1/$LIVEKITNAME"
|
||||||
|
}
|
||||||
|
|
||||||
|
# Find LIVEKIT data by mounting all devices
|
||||||
|
# If found, keep mounted, else unmount
|
||||||
|
# $1 = data directory target (mount here)
|
||||||
|
# $2 = data directory which contains compressed bundles
|
||||||
|
#
|
||||||
|
find_data_try()
|
||||||
|
{
|
||||||
|
debug_log "find_data_try" "$*"
|
||||||
|
|
||||||
|
local DEVICE FS FROM OPTIONS
|
||||||
|
|
||||||
|
mkdir -p "$1"
|
||||||
|
blkid | sort | cut -d: -f 1 | grep -E -v "/loop|/ram|/zram" | while read DEVICE; do
|
||||||
|
FROM="$2"
|
||||||
|
FS="$(device_bestfs "$DEVICE")"
|
||||||
|
OPTIONS="$(fs_options $FS)"
|
||||||
|
mount -r "$DEVICE" "$1" $FS $OPTIONS 2>/dev/null
|
||||||
|
|
||||||
|
# if the FROM parameter is actual file, mount it again as loop (eg. iso)
|
||||||
|
if [ -f "$1/$FROM" ]; then
|
||||||
|
mount -o remount,rw "$DEVICE" "$1" 2>/dev/null
|
||||||
|
mkdir -p "$1/../file"
|
||||||
|
mount -o loop,ro "$1/$FROM" "$1/../file" 2>/dev/null
|
||||||
|
FROM="../file/$LIVEKITNAME"
|
||||||
|
fi
|
||||||
|
|
||||||
|
# search for bundles in the mounted directory
|
||||||
|
if [ "$(find "$1/$FROM" -maxdepth 1 -name "*.$BEXT" 2>/dev/null)" != "" ]; then
|
||||||
|
# we found at least one bundle/module here
|
||||||
|
mount -o remount,rw "$DEVICE" "$1" 2>/dev/null
|
||||||
|
echo "$1/$FROM" | tr -s "/" | sed -r "s:/[^/]+/[.][.]/:/:g"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
|
||||||
|
# unmount twice, since there could be mounted ISO as loop too. If not, it doesn't hurt
|
||||||
|
umount "$1" 2>/dev/null
|
||||||
|
umount "$1" 2>/dev/null
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# Retry finding LIVEKIT data several times,
|
||||||
|
# until timeouted or until data is found
|
||||||
|
# $1 = timeout
|
||||||
|
# $2 = data directory target (mount here)
|
||||||
|
#
|
||||||
|
find_data()
|
||||||
|
{
|
||||||
|
debug_log "find_data" "$*"
|
||||||
|
|
||||||
|
local DATA FROM
|
||||||
|
|
||||||
|
if [ "$(cmdline_value ip)" != "" ]; then
|
||||||
|
download_data_pxe "$2"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
|
||||||
|
FROM="$(cmdline_value from)"
|
||||||
|
if [ "$FROM" = "" ]; then FROM="$LIVEKITNAME"; fi
|
||||||
|
echo_livekit >&2
|
||||||
|
echo "Looking for $LIVEKITNAME data in /$FROM .." | tr -s "/" >&2
|
||||||
|
for timeout in $(seq 1 $1); do
|
||||||
|
echo -n "." >&2
|
||||||
|
refresh_devs
|
||||||
|
DATA="$(find_data_try "$2" "$FROM")"
|
||||||
|
|
||||||
|
# This "was" a bug!
|
||||||
|
echo "" >&2
|
||||||
|
|
||||||
|
if [ "$DATA" != "" ]; then
|
||||||
|
echo_livekit_msg "$LIVEKITNAME data found on $(mounted_device "$2")" >&2
|
||||||
|
echo "$DATA"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
sleep 1
|
||||||
|
done
|
||||||
|
echo "" >&2
|
||||||
|
|
||||||
|
if [ "$DATA" = "" ]; then
|
||||||
|
fatal "$LIVEKITNAME data not found"
|
||||||
|
fi
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
# Activate persistent changes
|
||||||
|
# $1 = data directory
|
||||||
|
# $2 = target changes directory
|
||||||
|
#
|
||||||
|
persistent_changes()
|
||||||
|
{
|
||||||
|
debug_log "persistent_changes" "$*"
|
||||||
|
|
||||||
|
local CHANGES T1 T2
|
||||||
|
|
||||||
|
CHANGES="$1/$(basename "$2")"
|
||||||
|
T1="$CHANGES/.perch-test.dat"
|
||||||
|
T2="${T1}-clone.dat"
|
||||||
|
|
||||||
|
# Setup the directory anyway, it will be used in all cases
|
||||||
|
mkdir -p "$2"
|
||||||
|
|
||||||
|
# If persistent changes are not requested, end here
|
||||||
|
if grep -vq 'perch' /proc/cmdline; then
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
|
||||||
|
# check if changes directory exists and is writable
|
||||||
|
touch "$T1" 2>/dev/null && rm -f "$T1" 2>/dev/null
|
||||||
|
|
||||||
|
# if not, simply return back
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
echo_warn "Persistent changes not writable or not used."
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
echo_livekit_msg "Testing persistent changes for POSIX compatibility..." >&2
|
||||||
|
touch "$T1" && ln -sf "$T1" "$T2" 2>/dev/null && \
|
||||||
|
chmod +x "$T1" 2>/dev/null && test -x "$T1" && \
|
||||||
|
chmod -x "$T1" 2>/dev/null && test ! -x "$T1" && \
|
||||||
|
rm "$T1" "$T2" 2>/dev/null
|
||||||
|
|
||||||
|
if [ $? -ne 0 ]; then
|
||||||
|
echo_warn "File system is not POSIX-compatible!" >&2
|
||||||
|
echo_livekit_msg "Activating DynFileFS persistent changes..." >&2
|
||||||
|
rm "$T1" "$T2" 2>/dev/null
|
||||||
|
|
||||||
|
mount.dynfilefs "$CHANGES/changes.dat" 4000 "$2"
|
||||||
|
if [ "$(device_bestfs "$2/loop.fs" | tr -d " ")" = "-t" ]; then
|
||||||
|
mke2fs -F "$2/loop.fs" >/dev/null
|
||||||
|
fi
|
||||||
|
mount -o loop,sync "$2/loop.fs" "$2"
|
||||||
|
rmdir "$2/lost+found" 2>/dev/null
|
||||||
|
else
|
||||||
|
echo_livekit_msg "Activating native persistent changes..." >&2
|
||||||
|
mount --bind "$CHANGES" "$2"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Copy content of rootcopy directory to union
|
||||||
|
# $1 = data directory
|
||||||
|
# $2 = union directory
|
||||||
|
copy_rootcopy_content()
|
||||||
|
{
|
||||||
|
debug_log "copy_rootcopy_content" "$*"
|
||||||
|
|
||||||
|
if [ "$(ls -1 "$1/rootcopy/" 2>/dev/null)" != "" ]; then
|
||||||
|
echo_livekit
|
||||||
|
echo "Copying content of rootcopy directory..."
|
||||||
|
cp -a "$1"/rootcopy/* "$2"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# Copy data to RAM if requested
|
||||||
|
# $1 = live data directory
|
||||||
|
# $2 = changes directory
|
||||||
|
#
|
||||||
|
copy_to_ram()
|
||||||
|
{
|
||||||
|
debug_log "copy_to_ram" "$*"
|
||||||
|
|
||||||
|
local MDIR MDEV RAM CHANGES
|
||||||
|
|
||||||
|
if grep -vq 'copy2ram' /proc/cmdline; then
|
||||||
|
echo "$1"
|
||||||
|
return
|
||||||
|
fi
|
||||||
|
|
||||||
|
echo_livekit_msg "Copying $LIVEKITNAME data to RAM..." >&2
|
||||||
|
RAM="$(dirname "$2")"/copy_to_ram
|
||||||
|
mkdir -p "$RAM"
|
||||||
|
cp -a "$1"/* "$RAM"
|
||||||
|
echo "$RAM"
|
||||||
|
|
||||||
|
MDIR="$(mounted_dir "$1")"
|
||||||
|
MDEV="$(mounted_device "$1")"
|
||||||
|
MDEV="$(losetup $MDEV 2>/dev/null | cut -d " " -f 3)"
|
||||||
|
umount "$MDIR" 2>/dev/null
|
||||||
|
|
||||||
|
if [ "$MDEV" ]; then # iso was mounted here, try to unmount the FS it resides on too
|
||||||
|
MDEV="$(mounted_device "$MDEV")"
|
||||||
|
umount "$MDEV" 2>/dev/null
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# load filter
|
||||||
|
#
|
||||||
|
filter_load()
|
||||||
|
{
|
||||||
|
local FILTER
|
||||||
|
FILTER=$(cmdline_value load)
|
||||||
|
if [ "$FILTER" = "" ]; then
|
||||||
|
cat -
|
||||||
|
else
|
||||||
|
cat - | egrep "$FILTER"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# noload filter
|
||||||
|
#
|
||||||
|
filter_noload()
|
||||||
|
{
|
||||||
|
local FILTER
|
||||||
|
FILTER=$(cmdline_value noload)
|
||||||
|
if [ "$FILTER" = "" ]; then
|
||||||
|
cat -
|
||||||
|
else
|
||||||
|
cat - | egrep -v "$FILTER"
|
||||||
|
fi
|
||||||
|
}
|
||||||
|
|
||||||
|
# sort modules by number even if they are in subdirectory
|
||||||
|
#
|
||||||
|
sortmod()
|
||||||
|
{
|
||||||
|
cat - | sed -r "s,(.*/(.*)),\\2:\\1," | sort -n | cut -d : -f 2-
|
||||||
|
}
|
||||||
|
|
||||||
|
# Mount squashfs filesystem bundles
|
||||||
|
# and add them to union
|
||||||
|
# $1 = directory where to search for bundles
|
||||||
|
# $2 = directory where to mount bundles
|
||||||
|
# $3 = directory where union is mounted
|
||||||
|
#
|
||||||
|
union_append_bundles()
|
||||||
|
{
|
||||||
|
debug_log "union_append_bundles" "$*"
|
||||||
|
|
||||||
|
local BUN
|
||||||
|
|
||||||
|
echo_livekit >&2
|
||||||
|
echo "Appending bundles to union..." >&2
|
||||||
|
|
||||||
|
# Just tell me why! Why be compact?!?
|
||||||
|
( ls -1 "$1" | sort -n ; cd "$1" ; find modules/ 2>/dev/null | \
|
||||||
|
sortmod | filter_load) | grep '[.]'$BEXT'$' |\
|
||||||
|
filter_noload | \
|
||||||
|
while read BUNDLE; do
|
||||||
|
echo_livekit_msg "Appending: $BUNDLE" >&2
|
||||||
|
|
||||||
|
BUN="$(basename "$BUNDLE")"
|
||||||
|
mkdir -p "$2/$BUN"
|
||||||
|
|
||||||
|
# It now depends on your kernel!
|
||||||
|
mount -o loop -t squashfs "$1/$BUNDLE" "$2/$BUN"
|
||||||
|
mount -o remount,add:1:"$2/$BUN" aufs "$3"
|
||||||
|
done
|
||||||
|
}
|
||||||
|
|
||||||
|
# Create empty fstab properly
|
||||||
|
# $1 = root directory
|
||||||
|
#
|
||||||
|
fstab_create()
|
||||||
|
{
|
||||||
|
debug_log "fstab_create" "$*"
|
||||||
|
|
||||||
|
local FSTAB
|
||||||
|
FSTAB="$1/etc/fstab"
|
||||||
|
echo aufs / aufs defaults 0 0 > $FSTAB
|
||||||
|
echo proc /proc proc defaults 0 0 >> $FSTAB
|
||||||
|
echo sysfs /sys sysfs defaults 0 0 >> $FSTAB
|
||||||
|
echo devpts /dev/pts devpts gid=5,mode=620 0 0 >> $FSTAB
|
||||||
|
echo tmpfs /dev/shm tmpfs defaults 0 0 >> $FSTAB
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
# Change root and execute init
|
||||||
|
# $1 = where to change root
|
||||||
|
#
|
||||||
|
change_root()
|
||||||
|
{
|
||||||
|
debug_log "change_root" "$*"
|
||||||
|
echo_livekit_msg "Changing root..." >&2
|
||||||
|
umount /proc
|
||||||
|
umount /sys
|
||||||
|
|
||||||
|
cd "$1"
|
||||||
|
|
||||||
|
# make sure important device files and directories are in union
|
||||||
|
mkdir -p boot dev proc sys tmp mnt run
|
||||||
|
chmod 1777 tmp
|
||||||
|
if [ ! -e dev/console ]; then mknod dev/console c 5 1; fi
|
||||||
|
if [ ! -e dev/tty ]; then mknod dev/tty c 5 0; fi
|
||||||
|
if [ ! -e dev/tty0 ]; then mknod dev/tty0 c 4 0; fi
|
||||||
|
if [ ! -e dev/tty1 ]; then mknod dev/tty1 c 4 1; fi
|
||||||
|
if [ ! -e dev/null ]; then mknod dev/null c 1 3; fi
|
||||||
|
if [ ! -e sbin/fsck.aufs ]; then ln -s /bin/true sbin/fsck.aufs; fi
|
||||||
|
|
||||||
|
# find chroot and init
|
||||||
|
if [ -x bin/chroot -o -L bin/chroot ]; then CHROOT=bin/chroot; fi
|
||||||
|
if [ -x sbin/chroot -o -L sbin/chroot ]; then CHROOT=sbin/chroot; fi
|
||||||
|
if [ -x usr/bin/chroot -o -L usr/bin/chroot ]; then CHROOT=usr/bin/chroot; fi
|
||||||
|
if [ -x usr/sbin/chroot -o -L usr/sbin/chroot ]; then CHROOT=usr/sbin/chroot; fi
|
||||||
|
if [ "$CHROOT" = "" ]; then fatal "chroot: Executable not found!"; fi
|
||||||
|
|
||||||
|
if [ -x bin/init -o -L bin/init ]; then INIT=bin/init; fi
|
||||||
|
if [ -x sbin/init -o -L sbin/init ]; then INIT=sbin/init; fi
|
||||||
|
if [ "$INIT" = "" ]; then fatal "init: Executable not found!"; fi
|
||||||
|
|
||||||
|
mkdir -p mnt/live
|
||||||
|
mount -n -o remount,ro aufs .
|
||||||
|
pivot_root . mnt/live
|
||||||
|
exec $CHROOT . $INIT < dev/console > dev/console 2>&1
|
||||||
|
}
|
||||||
Loading…
Reference in New Issue