diff --git a/.config b/.config
index 38e2d75..03240e1 100644
--- a/.config
+++ b/.config
@@ -9,13 +9,13 @@
 # in order to update isolinux.bin for CD booting.
 LIVEKITNAME="mylinux"
 
-# Kernel file, will be copied to your Live Kit
-VMLINUZ=/boot/vmlinuz
-
 # Kernel version. Change it to "3.2.28" for example, if you are building
 # Live Kit with a different kernel than the one you are actually running
 KERNEL=$(uname -r)
 
+# Kernel file, will be copied to your Live Kit
+VMLINUZ=/boot/vmlinuz-"$KERNEL"
+
 # List of directories which will be modularized
 # No subdirectories are allowed, no slashes,
 # so You can't use /var/tmp here for example
@@ -26,7 +26,7 @@ MKMOD="bin etc home lib lib64 opt root sbin srv usr var"
 EXCLUDE="/etc/fstab /etc/mtab"
 
 # Temporary directory to store livekit filesystem
-LIVEKITDATA=/tmp/$LIVEKITNAME-data-$$
+LIVEKITDATA=$(mktemp -d "/tmp/$LIVEKITNAME-data.XXXXXX")
 
 # Bundle extension, for example 'sb' for .sb extension
 BEXT=sb
diff --git a/build b/build
index 9105965..819dffa 100755
--- a/build
+++ b/build
@@ -22,9 +22,9 @@ fi
 
 # build initramfs image
 echo "Building intramfs image..."
-cd initramfs
+cd initramfs || exit 1
 INITRAMFS=$(./initramfs_create "$LIVEKITNAME")
-cd ..
+cd .. || exit 1
 
 # create live kit filesystem (cpio archive)
 rm -Rf "$LIVEKITDATA"
@@ -54,7 +54,7 @@ fi
 
 # create ISO for CD image
 echo "Creating ISO file for CD boot..."
-cd "$LIVEKITDATA"
+cd "$LIVEKITDATA" || exit 1
 TARGET=/mnt/z
 if [ ! -d $TARGET ]; then
    TARGET=/tmp
@@ -67,11 +67,12 @@ mkisofs -o "$TARGET/$LIVEKITNAME-$ARCH.iso" -v -J -R -D -A "$LIVEKITNAME" -V "$L
 -b "$LIVEKITNAME"/boot/isolinux.bin -c "$LIVEKITNAME"/boot/isolinux.boot . \
 >/dev/null 2>/dev/null
 
-cat "$CWD/bootinfo.txt" | fgrep -v "#" | sed -r "s/mylinux/$LIVEKITNAME/" | sed -r "s/\$/
/" > readme.txt
+cat "$CWD/bootinfo.txt" | fgrep -v "#" | sed -r "s/mylinux/$LIVEKITNAME/" | sed -r "s/\$/
+/" > readme.txt
 echo "Creating ZIP for USB boot..."
 rm -f "$TARGET/$LIVEKITNAME-$ARCH.zip"
 zip -0 -r "$TARGET/$LIVEKITNAME-$ARCH.zip" *
 
-cd ..
+cd .. || exit 1
 rm -Rf "$LIVEKITDATA"
 echo "finished. Find your result in $TARGET"
diff --git a/livekitlib b/livekitlib
index 4a9a1d0..d019566 100644
--- a/livekitlib
+++ b/livekitlib
@@ -113,7 +113,7 @@ create_bundle()
 {
    debug_log "create_module" "$*"
    rm -f "$2" # overwrite, never append to existing file
-   mksquashfs "$1" "$2" -comp xz -b 512K $3 $4 $5 $6 $7 $8 $9>/dev/null
+   mksquashfs "$1" "$2" -comp "${COMP:-xz}" -b 512K $3 $4 $5 $6 $7 $8 $9>/dev/null
 }
 
 
@@ -131,7 +131,7 @@ transfer_initramfs()
       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/initramfs_escaped
-      exec switch_root -c /dev/console . $0
+      exec busybox switch_root -c /dev/console . $0
    fi
 }
 
@@ -247,7 +247,7 @@ device_bestfs()
    local FS
 
    FS="$(blkid "$1" | sed -r "s/.*TYPE=//" | tr -d '"' | tr [A-Z] [a-z])"
-   if [ "$FS" = "msdos" -o "$FS" = "fat" -o "$FS" = "vfat" ]; then
+   if [ "$FS" = "msdos" -o "$FS" = "fat" ]; then
       FS="vfat"
    elif [ "$FS" = "ntfs" ]; then
       FS="ntfs-3g"
@@ -644,4 +644,4 @@ change_root()
    mount -n -o remount,ro aufs .
    pivot_root . mnt/live
    exec $CHROOT . $INIT < dev/console > dev/console 2>&1
-}
\ No newline at end of file
+}