On Thu, 5 Jan 2023 at 08:21, Robert Moskowitz <rgm@htt-consult.com> wrote:

I just discovered that the HP Proliant gen8 does not have UEFI whereas the gen10 does.

So should I skip the older gen8 boxen and go with the gen10?

Or is it better, for RAID to avoid UEFI and get the older, cheaper gen8?

Hardware which doesn't support UEFI is probably going to have issues with EL8 or EL9 kernel in other ways (aka older megaraid or similar controller no longer supported) etc. Going from the web pages on HP ( https://techlibrary.hpe.com/us/en/enterprise/servers/supportmatrix/redhat_linux.aspx ), the Gen8 only supports RHEL 6 and RHEL 7. I am going to bet everything from network card to hard drive controller is EOL in EL8 and above on a Gen8.

thanks

On 1/3/23 08:04, Stephen John Smoogen wrote:

On Tue, 3 Jan 2023 at 06:19, Alessandro Baggi <alessandro.baggi@gmail.com> wrote:

Hi Jack,
I'm sorry to bother you during holidays.

I encountered a strange problem installing AlmaLinux 9.1 on a RAID1
(MDADM) with the current configuration:

- /boot/efi on md125
- swap on md126
- / on md127

My limited understanding is that RAID on EFI has been something of a hack as the backing store that EFI uses is a slightly modified VFAT. What happens is that there is some code to 'clone' the data across but it isn't really RAID1. My guess is that something in the 9.1 kernel broke that hack. Could you try CentOS Stream 9 kernel (you can install that with your existing Alma or Rocky system) and see if the problem still occurs? If it does then it is a bug that needs to be tracked upstream at bugzilla.redhat.com and if it doesn't then it should have been fixed in an upcoming kernel. You could continue to then use the CS9 kernel until whatever works in Alma/Rocky 9

trimmed bottom.

Stephen J Smoogen.
Let us be kind to one another, for most of us are fighting a hard battle. -- Ian MacClaren