"tune2fs -U clear" creates an invalid filesystem, that fsck.ext2
whines about later:
$ make rootfs-ext2
[--SNIP--]
$ ./host/usr/sbin/fsck.ext4 images/rootfs.ext2
e2fsck 1.42.7 (21-Jan-2013)
Filesystem did not have a UUID; generating one.
images/rootfs.ext2: clean, 4616/5120 files, 53171/131072 blocks
$ ./host/usr/sbin/fsck.ext4 -f images/rootfs.ext2
e2fsck 1.42.7 (21-Jan-2013)
One or more block group descriptor checksums are invalid. Fix<y>? yes
Group descriptor 0 checksum is 0x4131, should be 0x8bdb. FIXED.
[--SNIP--]
So we set an explicitly NULL UUID instead.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
a9825c06b8