Ross Walker wrote:
>> RedShift wrote:
>>>
>>> As a follow-up, I found the documentation I wrote how to install
>>> CentOS
>>> without any installer:
>>
>> That looks useful. Do you have any hints about how to get the right
>> drivers installed if you wanted to build a disk to be moved to a
>> different machine?
>
> That's even easier.
>
> Add the disk driver names in modprobe.conf the ones for system disks
> in the top half, data disks below. Then run a mkinitrd.
>
> Modprobe.conf excerpt:
>
> alias scsi_adapter ata_piix
> alias scsi_adapter0 ahci
> alias scsi_adapter1 mega_sas
> alias scsi_adapter2 mpt
>
> # mv /boot/init-$(uname -r).img /boot/init-$(uname -r).img
> # mkinitrd /boot/init-$(uname -r).img $(uname -r)
>
> That should make an initrd with the drivers necessary to boot your
> other boxes (of course using your own disk drivers and not mine).
Thanks - but there is another half to that question. How do you find the
names of the drivers that match any particular hardware without running
the installer?
I'd like to have a generic backup/restore mechanism that would drop in a
tar image (etc.) from one machine and come up running on something
different - or a fixup procedure for disks that have been moved from one
chassis to another. Even where the machines are identical and I put the
target machine's MAC addresses in the ifcfg-ethX file, something seems
to rename them and screw things up when a disk is moved.
--
Les Mikesell
lesmikesell at gmail.com