Description of problem:

During installation of ovirt-node (with ovirt-node-iso-2.5.1-1.0.fc17.iso mounted as IPMI media) there's media check showing [Esc] to abort. While pressing [Esc] the installation finishes in kernel panic. Same error if using VGA as console or serial (output below is from serial to get plain-text output).

Version-Release number of selected component (if applicable):

ovirt-node-iso-2.5.1-1.0.fc17.iso

How reproducible:

Always when pressing [Esc].

Steps to Reproduce:
1. Plug iso via IPMI.
2. Boot from iso.
3. Press [Esc] when there's written on the console you can abort media check.
  
Actual results:

=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2012.10.01 20:02:55 =~=~=~=~=~=~=~=~=~=~=~=
[    1.027698] ERST: Failed to get Error Log Address Range.
ÿudevd[165]: sender uid=-1, message ignored

Couldn't open /dev/ttyS0
[    4.139429] sd 6:0:0:0: [sdc] No Caching mode page present
[    4.144995] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[    4.154199] sd 6:0:0:0: [sdc] No Caching mode page present
[    4.160004] sd 6:0:0:0: [sdc] Assuming drive cache: write through
[    4.170241] sd 6:0:0:0: [sdc] No Caching mode page present
[    4.176123] sd 6:0:0:0: [sdc] Assuming drive cache: write through
/dev/sr0:   d0ed67c95a7c0001e54e23d0a7d2ebe8
Fragment sums: 11ac34c3a2ea581cd5ac6c7aabe41da683f82c5be953ed31bff3c49e1971
Fragment count: 20
Press [Esc] to abort check.

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The media chec[    7.040489] dracut: FATAL: CD check failed!
k is complete, t[    7.045986] dracut: Refusing to continue
he result is: UNKNOWN.

The media check was aborted.

dracut Warning: Unable to process initqueue
dracut Warning: dracut: FATAL: CD c[   27.081976] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100
[   27.081976] 
heck failed!
dr[   27.092539] Pid: 1, comm: init Not tainted 3.5.0-2.fc17.x86_64 #1
acut Warning: dr[   27.100735] Call Trace:
acut: Refusing t[   27.104913]  [<ffffffff815fd9d7>] panic+0xba/0x1c9
o continue
drac[   27.111725]  [<ffffffff8105e35a>] do_exit+0x7fa/0x8c0
ut Warning: /dev[   27.118711]  [<ffffffff8106b4c7>] ? __set_task_blocked+0x37/0x80
/mapper/live-rw [   27.126812]  [<ffffffff8105e76f>] do_group_exit+0x3f/0xa0
[   27.134318]  [<ffffffff8105e7e7>] sys_exit_group+0x17/0x20
does not exist
[   27.140060]  [<ffffffff8160fc29>] system_call_fastpath+0x16/0x1b

dracut War

Expected results:

As installation informs user that he can press [Esc], it should work and not finish in kernel panic.

Additional info: