[CentOS-virt] Testing new Xen Version and rollback.
Ben M.
centos at rivint.com
Fri Oct 9 01:39:08 UTC 2009
Thanks, the stacklet.com directions looked pretty non-invasive and I
will try it after a backup. I just wanted to get an idea if depmod will
do anything other than make the new kernel to test "system ready."
Manuel Wolfshant wrote:
> On 10/09/2009 01:57 AM, Ben M. wrote:
>> I do not have a comprehensive grasp on startup scripts, as well as what
>> files are not rolled into the kernel itself.
>>
>> In other words, I don't understand yet when a new kernel is installed,
>> whether there are any support files that come with it, or whether
>> everything that, for instance, the Xen kernel needs, are entirely within
>> that kernel file (hardware drivers).
>>
> the normal centos kernel comes with lots of drivers compiled as modules.
> using tar tjf on the kernel provided by stacklet will let you know what
> modules does this one include...
>
>
>> If it is just a matter of having a section for it in grub.conf.
>>
> depmod, used as described on the site, will not touch the rest of your
> system. and note that if using the new kernel only inside DomU (thus
> leaving Dom0 intact) AND using the first method that is described on
> that page, you do not have to touch ANY grub.conf at all ( by using the
> kernel directive inside the VM's config file, as described in the first
> part of the page)
>
> actually the instructions given over there are pretty sane and - if
> respected - will not harm in any way the existing systems (either Dom0
> or DomU). unlike gitco, which, as you have seen, has a much more
> invasive approach.
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