redhat "rescue mode"?
David Lee
David.Lee at ecmwf.int
Thu Dec 15 14:28:54 UTC 2011
Thanks, Michael. I filed a ticket (#14) on 7 December. Joergen Mass is
also interested in this topic.
My personal view, following a brief discussion with Joergen, remains
that we ought to view this primarily from the angle of "keep it simple
and well-documented for the average end-user". We shouldn't have to
tell the user to set up new profiles or any such techno-geekery. If
such things have to happen "under the covers", then the typical user
should not need to know about it. If it /really/ is necessary for the
end-user to have to do it, then first of all we need to write accurate,
clear, unambiguous documentation, then implement what the documentation
says.
Hope that helps.
-- David Lee
Michael DeHaan wrote:
> Filing a ticket in github (github.com/cobbler/cobbler) should be good
> enough.
>
> (I think reinstating the original behavior works best, at least at the
> code level.)
>
> -- Michael
>
> On Tuesday, December 6, 2011 at 9:24 AM, David Lee wrote:
>
>> Thanks, Michael.
>>
>> This isn't urgent for us. But it is something which I think would be
>> very, very nice to have readily and easily available in the future.
>>
>> For any established system "client1", it would be good to be able to do
>> something as simple as a re-enabling of the original specification:
>>
>> cobbler system edit --name=client1 \
>> --netboot-enabled=true --rescue-mode=true
>>
>> An alternative syntax might be:
>> cobbler system edit --name=client1 --netboot-enabled=rescue
>>
>> I merely offer those two as possible suggestions; I can see good and
>> not-so-good in both.
>>
>> The essential point is simplicity and (as Michael says) "it also
>> immediately exposes the capabilities to those who didn't know it was
>> there."
>>
>> Should I raise this on "cobbler-devel"?
>>
>>
>> --
>> : David Lee
>>
>>
>>
>>
>> Michael DeHaan wrote:
>>> Here's an older post that should be helpful:
>>>
>>> http://www.redhat.com/archives/et-mgmt-tools/2008-April/msg00059.html
>>>
>>> This was actually a feature for a long while:
>>>
>>> https://fedorahosted.org/pipermail/cobbler/2008-September/000773.html
>>>
>>>
>>> This functionality has apparently been commented out in recent "cobbler
>>> import" builds.
>>>
>>> I'm not sure why. It could be that in making imports modular it was
>>> just never finished, it or it could be because someone didn't like the
>>> extra profiles cluttering up the list. I think I'd like to see it
>>> return namely because you don't have to remember what to put in the
>>> rescue kickstart, and it is also immediately exposes the capabilities to
>>> those who didn't know it was there.
>>>
>>> https://github.com/cobbler/cobbler/blob/master/cobbler/modules/manage_import_redhat.py
>>>
>>>
>>> --
>>> Michael DeHaan
>>> Sent with Sparrow <http://www.sparrowmailapp.com/?sig>
>>>
>>> On Tuesday, December 6, 2011 at 5:48 AM, David Lee wrote:
>>>
>>>> (Using cobbler 2.0.11 with RHEL 5.6.)
>>>>
>>>> I may have missed the documentation on this: if so, simply point me in
>>>> the right direction!
>>>>
>>>> During the last few months we have developed a cobbler installation for
>>>> installing new client systems, and are happy with it. Indeed, most of
>>>> our boxes don't have internal DVD drives, so cobbler has been essential.
>>>>
>>>> But one thing we would like to be able to do occasionally is to boot a
>>>> client box into a "rescue mode". The most recent example was when we
>>>> had some suspect memory on a disk controller.
>>>>
>>>> Is there some sort of recipe somewhere for running a "rescue mode" boot
>>>> of a cobbler client system?
>>>>
>>>>
>>>> --
>>>> : David Lee
>>>> : ECMWF (Data Handling System)
>>>> : Shinfield Park
>>>> : Reading RG2 9AX
>>>> : Berkshire
>>>> :
>>>> : tel: +44-118-9499 362
>>>> : email: david.lee at ecmwf.int <mailto:david.lee at ecmwf.int>
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