RAID + UEFI
Justin Cattle
j at ocado.com
Wed Sep 20 15:00:28 CEST 2023
Hi,
I think we do have some customisation in the various scripts, including
GRUB_EFI/10-setup, that may account for it.
As our script for grub is quite custom to our use case, I'm not sure I can
share it I'm afraid. But, that is where you need to start investigating.
This is from vague recollection now, but I think essentially you have to
make grug install directly to the individual disk devices, separately, and
not try and use the raid device.
Hopefully someone else has some more concise advice!
Cheers,
Just
On Wed, 20 Sept 2023 at 10:44, Thomas Kloepfer <
thomas.kloepfer at iwr.uni-heidelberg.de> wrote:
> Hello Justin,
>
> thanks for the quick answer.
>
> I tried to use your disk_config. And I get a a raid as expected.
> But the script for settign up grup [ config/scipts/GRUP_EFI/10-setup ]
> fails.
> Hence I end up with a system tha can not boot.
>
> What I find in [ scripts.log ]:
> -------------------------------
> ===== shell: GRUB_EFI/10-setup =====
> ...
> + echo Install grub on /dev/sda
> + unshare --pid --fork --kill-child
> --mount-proc chroot /target grub-install
> --no-floppy --force-extra-removable /dev/sda
> Installing for x86_64-efi platform.
> grub-install: error: disk `md0' not found.
> ++ error=1
> ...
> Install grub on /dev/sdb
> + unshare --pid --fork --kill-child
> --mount-proc chroot /target grub-install
> --no-floppy --force-extra-removable /dev/sdb
> Installing for x86_64-efi platform.
> grub-install: error: disk `md0' not found.
> ++ error=1
> ...
> done
> + exit 1
> GRUB_EFI/10-setup FAILED with exit code 1.
> -------------------------------
>
> So my question is: Have you twaked [ GRUP_EFI/10-setup ] ?
> How can I fix this error?
> Why is the script telling me it uses [sda] for installation bun then
> trying [md0]?
>
> Perhaps some of the envirenment-variables might help, so I list a few:
> FAI_VERSION=6.0.5
> disklist='sda sdb '
>
> Regards
> Thomas Kloepfer
>
> On 20.09.23 09:21, Justin Cattle wrote:
>
> Hi,
>
>
> There's probably a few different ways to do this. Here is a fairly
> generic disk_config example I created last time I was working on FAI.
> I haven't used the config n a while, but it's should be some inspiration
> even if it doesn't work for you as it is:
>
> $ cat disk_config/FAIBASE_EFI_RAID
> # default EFI raid disk config
> # <type> <mountpoint> <size> <fs type> <mount options> <misc options>
> disk_config disk1 disklabel:gpt fstabkey:uuid align-at:1M
> primary - 256M - -
> primary - 256M- - -
> primary - RAM:20% - -
>
> disk_config disk2 sameas:disk1
>
> disk_config raid fstabkey:uuid
> raid1 /boot/efi disk1.1,disk2.1 vfat rw
> mdcreateopts="--metadata=1.0"
> raid1 / disk1.2,disk2.2 ext4 defaults,noatime,discard
> raid1 swap disk1.3,disk2.3 swap sw
>
>
> You can also use LVM as well on top if you like. Here is my example for
> htat [ again, from last time I looked at this stuff ]:
>
> $ cat LVM_EFI_RAID
> # default LVM EFI raid disk config
> # <type> <mountpoint> <size> <fs type> <mount options> <misc options>
> disk_config disk1 disklabel:gpt fstabkey:uuid align-at:1M
> primary - 256M - -
> primary - 1G - -
> primary - 4G- - -
>
> disk_config disk2 sameas:disk1
>
> disk_config raid fstabkey:uuid
> raid1 /boot/efi disk1.1,disk2.1 vfat rw
> mdcreateopts="--metadata=1.0"
> raid1 /boot disk1.2,disk2.2 ext4 defaults,noatime,discard
> raid1 - disk1.3,disk2.3 - -
>
> disk_config lvm fstabkey:uuid
>
> vg vg md2
> vg-root / 256M- ext4 defaults,noatime,discard
> vg-swap swap RAM:20% swap sw
>
>
> Hope that helps.
>
> Cheers,
> Just
>
>
> On Wed, 20 Sept 2023 at 08:14, Thomas Kloepfer <
> thomas.kloepfer at iwr.uni-heidelberg.de> wrote:
>
>> Hello,
>>
>> I am rather new to FAI. But I am impresst by this great tool.
>> Especially by the documentation that commes with it.
>>
>> But I am suprised I do not find any working example on how to set up a
>> simple RAID 1 with UEFI boot.
>>
>> I read all the discussions in this mailinglist (found two threads
>> dealing with the problem).
>>
>> I am aware that RAID and UEFI do not get together well due to the fact
>> that the RAID information is not available at boot-time and [grup] has
>> to deal with a device [sda] rather than with a partition [md0]. Futher
>> more [grup] needs a partition with partition type [vfat].
>>
>> I can imaging a solution with FAI that needs special one-time treatment
>> done manualy after FAI hast terminated, but this kills the aim of FAI :
>> A=fully, A=automated .
>>
>> so my question is:
>> - Can any one supply a solution that manages RAID 1 with UEFI at the
>> same time?
>> (I would be sadisfied with a solution where the Partition used by
>> UEFI-boot is *not* on a RAID.)
>>
>> or
>>
>> - Is it realy just not so easy to get RAID and UEFI to work together
>> because FAI was established at a time where there was no UEFI boot.
>> Hence the stucture of FAI is not intended to solve this in the first
>> pace. Attemts to solve this will result in rather ugly workarounds?
>>
>> I'd appreciate any helpfull reply.
>> And thanks again for this great tool.
>>
>> Thomas Kloepfer
>>
>
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