On 03/16/2018 02:55 AM, Gary Stainburn wrote:
Hi Bill, Thanks for this. However, when I try this I get: [root@lou ~]# grub2-install /dev/sda /usr/lib/grub/x86_64-efi doesn't exist. Please specify --target or --directory [root@lou ~]# A quick google shows gives the indication that this is for MBR systems where mine is UEFI.
Right, don't do that on an EFI system.
A slower google hasn't given me instructions on how to do this on a UEFI system in a way that I can understand. Can anyone give the equivelant to Bill's commands above.
I think it should be possible. You will need to use RAID metadata version 1.0 so that the superblock is not at the front. This should allow the BIOS to read the partition as if it was only fat32 and not raid. I'm assuming you don't have windows on this system so nothing should modify the partition while it's not in raid mode.
Make sure you have a live boot available in case something goes wrong. Make a copy of the files on the EFI partition. Create the raid array using "-e 1.0". Format it as fat32. Copy the files back. Adjust your fstab. Make sure you don't change the partition type or flags in the partition table.
this is what the two drives both look like at the moment, Number Start End Size File system Name Flags 1 1049kB 53.5MB 52.4MB fat16 EFI System Partition boot 2 53.5MB 2837GB 2837GB raid 3 2837GB 2942GB 105GB raid 4 2942GB 2994GB 52.5GB ext4 raid 5 2994GB 3001GB 6296MB raid
6 3001GB 3001GB 1049kB bios_grub
I thought this partition was only needed when booting a GPT partitioned drive in legacy (non-EFI) mode.
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