[cobbler] second system won't boot

Cameron Regan cregan at dimaxperformance.com
Mon Sep 22 20:06:13 UTC 2014


Hi Jeremy,

I had a very similar problem.

What got me working is for the kernel line add ksdevice=link.

Cam


On 22/09/14 04:00 PM, Jeremy Mordkoff wrote:
>
>>
>
> On 09/22/2014 03:08 PM, Alan Evangelista wrote:
>> On 09/22/2014 03:31 PM, Jeremy Mordkoff wrote:
>>>
>>> I have cobbler up and running and I've installed to my first system 
>>> at least a dozen times. The first system had two CPUs and 16 GB RAM.
>>>
>>>
>>> Now I'm trying a mass deployment.  These new systems all have 1 CPU 
>>> and 8 GB RAM.
>>>
>>>
>>> The install fails on the new systems. I compared the output from 
>>> cobbler system report for the two systems and except for the obvious 
>>> differences in names and addressing, everything else is the same.
>>>
>>>
>>> It drops down into an emergency shell right after
>>>
>>> Warning: Could not boot
>>>
>>> Warning: /dev/root does not exist
>>>
>>>
>>
>> You can use the same profile for all systems, you just need one 
>> Cobbler system object for each system.
>> You must fill network data in each Cobbler system object.
>>
>> What Linux distribution are you trying to install? I suppose you are 
>> not providing
>> system network setup in kernel options, in which case the 
>> installation kernel will
>> use DHCP to setup network. I have already seen this non-intuitive 
>> error message
>> in RHEL/Fedora installations, its root cause is that DHCP was unable 
>> to get network
>> information from DHCP  server after netbooting and before starting OS 
>> installation.
>>
> Fedora 20
> I have a new profile for the new system.
> I do believe this is a DHCP issue, but I cannot determine why this 
> system is behaving differently than the first one. The two are the 
> same except the second unit does not have the second CPU populated and 
> it only has 8 GB ram...neither of which I would think would affect the 
> network.
>
> DHCP clearly is working because the PXE boot client was able to get an 
> address. So why can't linux?
>
>
>
>
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