F21 TC4 Server netinst hangs at Probing Storage

[Robert Moskowitz]

Into shell...

On 11/25/2014 05:51 PM, Chris Murphy wrote:
> On Tue, Nov 25, 2014 at 3:41 PM, Robert Moskowitz <rgm at htt-consult.com> wrote:
>> On 11/25/2014 05:36 PM, Chris Murphy wrote:
>>> Maybe this bug:
>>> https://bugzilla.redhat.com/show_bug.cgi?id=1111722
>>
>> maybe.
>>
>>> Try to provide any information you can.
>>
>> Same hang when I boot from the Server install DVD.
>>
>>> If it hangs long enough, if you can get to a shell and do this:
>>>
>>> echo 1 >/proc/sys/kernel/sysrq
>>> echo w > /proc/sysrq-trigger

SysRq : Show Blocked State

>>> echo t > /proc/sysrq-trigger

SysRq : Show State

>>> dmesg > dmesg.txt

No file saved. But 'dmesg > /mnt/dmesg.txt' worked.

>>
>> How do I get to shell once it hangs?  Or do I do this from the startup menu,
>> pressing 'e' and then whatever it says to enter a command?
> control-alt-f2 I think will do it; depends on the install media
> whether you get a prompt or some other process showing logs, so try f2
> and if you don't have a prompt try f3, then f4, etc.

ctl-alt-F2 worked.

>>> Attach dmesg.txt to the bug report, and include the above commands as
>>> a comment. Maybe someone can figure out what's blocked, or otherwise
>>> misbehaving, if it's kernel related.
>>>
>>>
>> How am I going to get this output?  Can I mount a USB drive and get the
>> output from those commands to a file on it?
> Yes. Insert USB then:
>
> lsblk to find out what /dev/sdXY is
> mount /dev/sdXY /mnt
> cp dmesg /mnt/
> umount /mnt

Now to post it to that bug report you have open...