[et-mgmt-tools] koan - rh7.3 - possible?

[Michael DeHaan]

Tom Brown wrote:
>
>>
>> The python for 7.3 is pre-2 if I remember correctly. It is doubtful
>> that you will be able to get the changes backported. I would say look
>> to see if you can upgrade them to something other than 7.3 because
>> well the security holes in those are pretty big.
>>
>>   
>
> indeed - hence koan for the rebuild - seems though that PXE or Koan CD 
> are the only options
>
> thanks
>
>
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In all fairness -- they are much better options.   --replace-self 
assumes the system is bootable (and probably network accessible if you 
want to automate mass replacement), so if you wreck your OS on any of 
them, you are going to want one of the other options anyway.

If you don't have PXE capability in your network, fighting to get it is 
well worth it.   If not, the ISO (other than requiring physical
access -- assuming you don't have a management card that allows pushing 
ISO's down), will achieve PXE-equivalent capability.

This works especially well if you use the pxe_just_once setting in 
/var/lib/cobbler/settings and set your machines up to PXE every time
they boot.

In this scenario, reinstallations can be done as simply as:

cobbler system edit --name=FOO --netboot-enabled=1 --profile=newprofile
(and cycle power once)

Once the system completes installing, it will deactivate it's PXE 
configuration file and PXE through to local boot until you decide to 
reinstall it again.

--Michael