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.