On 11/18/2015 08:07 PM, Fred Smith wrote:
Can anyone provide (or give pointers to) a good recipe for doing this?
One of the things I'm working on right now is moving toward a single
standard partition layout for all systems, with RAID or without. The
reason I want to do that is that it'll allow me to script the
replacement of a failed drive, both so that I don't fat-finger it and so
that our on-call staff can reasonably expect to replace a drive.
In order to do that, I set up GPT on all drives, regardless of whether
they are used in BIOS systems or UEFI. On BIOS systems, the first
partition is a bios_boot partition, and on UEFI, it's an EFI system
partition. The next partition is a small slice for RAID1 /boot. The
last partition is a member of whatever RAID level is appropriate for the
system.
There are a couple of limiting factors on that. First, Anaconda won't
create a large partition for bios_boot. Second, even in kickstart,
Anaconda will reorder partitions. So, I can't use Anaconda to create
partitions and achieve a uniform layout.
I use this kickstart file for initial setup:
http://home.dragonsdawn.net/kickstart/centos7
And this script to replace drives:
http://home.dragonsdawn.net/kickstart/add-raid-member
I still haven't decided how I'm going to handle EFI system partitions in
the replacement script and otherwise, so this system is incomplete. But
if people want to take a look and comment, I'd be interested in discussion.
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