From e719e0c4d9fa86ba0d0b907645c9b3dee58647e2 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 25 Feb 2007 17:59:23 +0000 Subject: add optional padding for x86 grub images (useful for running jffs2 images in qemu) git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6359 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- target/linux/x86-2.6/image/gen_image.sh | 2 ++ 1 file changed, 2 insertions(+) (limited to 'target/linux/x86-2.6/image/gen_image.sh') diff --git a/target/linux/x86-2.6/image/gen_image.sh b/target/linux/x86-2.6/image/gen_image.sh index 314d7314fd..b4845f5a77 100755 --- a/target/linux/x86-2.6/image/gen_image.sh +++ b/target/linux/x86-2.6/image/gen_image.sh @@ -23,11 +23,13 @@ set `ptgen -o "$OUTPUT" -h $head -s $sect -p ${KERNELSIZE}m -p ${ROOTFSSIZE}m` KERNELOFFSET="$(($1 / 512))" ROOTFSOFFSET="$(($2 / 512))" +ROOTFSSIZE="$(( ($3 - $2) / 512))" BLOCKS="$((($ROOTFSOFFSET - $KERNELOFFSET) / 2 - 1))" genext2fs -d "$KERNELDIR" -b "$BLOCKS" "$OUTPUT.kernel" dd if="$OUTPUT.kernel" of="$OUTPUT" bs=512 seek="$KERNELOFFSET" conv=notrunc +[ -n "$PADDING" ] && dd if=/dev/zero of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc count="$ROOTFSSIZE" dd if="$ROOTFSIMAGE" of="$OUTPUT" bs=512 seek="$ROOTFSOFFSET" conv=notrunc #rm -f "$OUTPUT.kernel" -- cgit v1.2.3