46 lines
1.2 KiB
Bash
Executable File
46 lines
1.2 KiB
Bash
Executable File
#!/bin/sh
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# Setup booting from disk (USB or harddrive)
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# Requires: fdisk, df, tail, tr, cut, dd, sed
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# change working directory to dir from which we are started
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CWD="$(pwd)"
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BOOT="$(dirname "$0")"
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cd "$BOOT"
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# find out device and mountpoint
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PART="$(df . | tail -n 1 | tr -s " " | cut -d " " -f 1)"
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DEV="$(echo "$PART" | sed -r "s:[0-9]+\$::" | sed -r "s:([0-9])[a-z]+\$:\\1:i")" #"
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# Try to use installed extlinux binary and fallback to extlinux.exe only
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# if no installed extlinux is not found at all.
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EXTLINUX="$(which extlinux 2>/dev/null)"
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if [ "$EXTLINUX" = "" ]; then
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EXTLINUX="./extlinux.exe"
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fi
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"$EXTLINUX" --install "$BOOT"
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if [ $? -ne 0 ]; then
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echo "Error installing boot loader."
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echo "Read the errors above and press enter to exit..."
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read junk
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exit 1
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fi
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if [ "$DEV" != "$PART" ]; then
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# Setup MBR on the first block
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dd bs=440 count=1 conv=notrunc if="$BOOT/mbr.bin" of="$DEV" 2>/dev/null
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# Toggle a bootable flag
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PART="$(echo "$PART" | sed -r "s:.*[^0-9]::")"
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(
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fdisk -l "$DEV" | fgrep "*" | fgrep "$DEV" | cut -d " " -f 1 \
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| sed -r "s:.*[^0-9]::" | xargs -I '{}' echo -ne "a\n{}\n"
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echo -ne "a\n$PART\nw\n"
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) | fdisk $DEV >/dev/null 2>&1
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fi
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echo "Boot installation finished."
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cd "$CWD"
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