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Final ramdisk must be a filesystem image

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This commit is contained in:
Dean Troyer 2011-10-25 22:35:23 -05:00
parent a6466e0f67
commit 61be924209
1 changed files with 15 additions and 8 deletions
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21
tools/build_ramdisk.sh
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@ -80,16 +80,24 @@ fi
# ====================================== # ======================================
if [ ! -r $IMG_FILE ]; then if [ ! -r $IMG_FILE ]; then
qemu-img convert -O raw $CHROOTCACHE/natty-dev.img $IMG_FILE qemu-nbd -c $NBD $CHROOTCACHE/natty-dev.img
fi if ! timeout 60 sh -c "while ! [ -e /sys/block/$NBD_DEV/pid ]; do sleep 1; done"; then
qemu-nbd -c $NBD $IMG_FILE
if ! timeout 60 sh -c "while ! [ -e /sys/block/$NBD_DEV/pid ]; do sleep 1; done"; then
echo "Couldn't connect $NBD" echo "Couldn't connect $NBD"
exit 1 exit 1
fi
# Pre-create the image file
# FIXME(dt): This should really get the partition size to
# pre-create the image file
dd if=/dev/zero of=$IMG_FILE bs=1 count=1 seek=$((2*1024*1024*1024))
# Create filesystem image for RAM disk
dd if=${NBD}p1 of=$IMG_FILE bs=1M
qemu-nbd -d $NBD
fi fi
MNTDIR=`mktemp -d --tmpdir mntXXXXXXXX` MNTDIR=`mktemp -d --tmpdir mntXXXXXXXX`
mount -t ext4 ${NBD}p1 $MNTDIR mount -t ext4 -o loop $IMG_FILE $MNTDIR
cp -p /etc/resolv.conf $MNTDIR/etc/resolv.conf cp -p /etc/resolv.conf $MNTDIR/etc/resolv.conf
# git clone only if directory doesn't exist already. Since ``DEST`` might not # git clone only if directory doesn't exist already. Since ``DEST`` might not
@ -174,6 +182,5 @@ chroot $MNTDIR chown stack $DEST/run.sh
umount $MNTDIR umount $MNTDIR
rmdir $MNTDIR rmdir $MNTDIR
qemu-nbd -d $NBD
gzip -1 $IMG_FILE gzip -1 $IMG_FILE