Hi,

after applying the latest kernel update (might be coincidence) one of our
SLES 11 SP3 server did not boot any more. It stops because the root device
is not found and exits into a shell. If I leave the shell with 'exit', the
device gets mounted and the server continues to boot without any problems:


Boot logging started on /dev/tty1(/dev/console) at Fri Apr 25 13:13:37 2014

FATAL: Error inserting mgag200 (/lib/modules/3.0.101-0.21-
default/kernel/drivers/gpu/drm/mgag200/mgag200.ko): Invalid argument
Setup multipath devices: ok.
Trying manual resume from /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part1
Invoking userspace resume from /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part1
resume: libgcrypt version: 1.5.0
Trying manual resume from /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part1
Invoking in-kernel resume from /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part1
Waiting for device /dev/disk/by-id/scsi-360050760580b25501a2b5baa1bc1de9a-
part2 to appear: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Could not find /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part2.
Want me to fall back to /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1bc1de9a-part2? (Y/n)
Waiting for device /dev/disk/by-id/scsi-360050760580b25501a2b5baa1bc1de9a-
part2 to appear: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!not found -- exiting to
/bin/sh
$ exit
exit
fsck from util-linux 2.19.1
[/sbin/fsck.ext3 (1) -- /] fsck.ext3 -a -C0 /dev/sda2
/dev/sda2: clean, 269222/14024704 files, 6787395/56097024 blocks
fsck succeeded. Mounting root device read-write.
Mounting root /dev/disk/by-id/scsi-360050760580b25501a2b5baa1bc1de9a-part2
mount -o rw,acl,user_xattr -t ext3 /dev/disk/by-
id/scsi-360050760580b25501a2b5baa1b0cde9a-part2 /root


I tried to downgrade the kernel, but the problem stays the same.

Boot and root partitions are on local RAID 1 disks.

Any ideas?

Thanks,
Mirko