I have 2 lab z/VM guest machines both are RHEL 6.5, one registered one not
registered. I recently ran 'yum update' on both and all seemed to go well
until I did a reboot.
Now the registered machine fails to boot, the other one works fine.
I'm probably not going to fix it (unless someone sees an easy fix) I am
more curious as to whether I did something wrong, or any guesses as to what
happened.
Anyways here is the last few messages:
VFS: Cannot open root device "disk/by-path/ccw-0.0.0100-part2" or
unknown-block(0,0)
Please append a correct "root=" boot option; here are the available
partitions:
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
CPU: 0 Not tainted 2.6.32-573.8.1.el6.s390x
#1
Process swapper (pid: 1, task: 000000007fe83370, ksp:
000000007fe8b958)
000000007fe8bd20 000000007fe8bca0 0000000000000002
0000000000000000
000000007fe8bd40 000000007fe8bcb8 000000007fe8bcb8
00000000004f7108
0000000000000011 0000000000000000 000000007eb63000
000003d281bb7da8
000000000000000d 000000000000000c 000000007fe8bd10
0000000000000000
0000000000000000 000000000010582c 000000007fe8bca0
000000007fe8bce0
Call
Trace:
([<000000000010572c>]
show_trace+0xe8/0x138)
[<00000000004f6f42>]
panic+0xde/0x250
[<00000000008744c2>]
mount_block_root+0x292/0x33c
[<00000000008747d6>]
prepare_namespace+0x1e2/0x220
[<0000000000873890>]
kernel_init+0x464/0x47c
[<000000000010a746>]
kernel_thread_starter+0x6/0xc
[<000000000010a740>]
kernel_thread_starter+0x0/0xc
HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 001156BA
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