Re: RAID + UEFI

2023-09-20 Diskussionsfäden Justin Cattle
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.kloep...@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-setupFAILED 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
> #
> 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 vfatrw
> mdcreateopts="--metadata=1.0"
> raid1   / disk1.2,disk2.2 ext4defaults,noatime,discard
> raid1   swap  disk1.3,disk2.3 swapsw
>
>
> 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
> #
> 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 vfatrw
> mdcreateopts="--metadata=1.0"
> raid1   /boot disk1.2,disk2.2 ext4defaults,noatime,discard
> raid1   - disk1.3,disk2.3 -   -
>
> disk_config lvm fstabkey:uuid
>
> vg vg md2
> vg-root / 256M-   ext4defaults,noatime,discard
> vg-swap swap  RAM:20% swapsw
>
>
> Hope that helps.
>
> Cheers,
> Just
>
>
> On Wed, 20 Sept 2023 at 08:14, Thomas Kloepfer <
> thomas.kloep...@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 

Re: RAID + UEFI

2023-09-20 Diskussionsfäden Thomas Kloepfer

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
#  
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
#  
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 
 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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Re: RAID + UEFI

2023-09-20 Diskussionsfäden Andrew Ruthven
On Wed, 2023-09-20 at 09:52 +0200, Diego Zuccato wrote:
> TL;DR: IMO having /boot/uefi on (sw) RAID1 is not worth the headaches.
> Long version follows.
> 
> That's quite normal. You should use older RAID format that places 
> metadata at the end of the partition instead of the newer that places it 
> at the beginning. And even so it's risky, since one of the partitions 
> could get modified by other systems (the BIOS, for example) that aren't 
> RAID-aware (that's also one of the reasons that lead to the newer 
> format...).

Yeah, I tried the older RAID formats, didn't work. ;)

What I have considered is having a hook that copies /boot/efi from the
"primary" drive to the "secondary". But I'm not sure how safe that is in
reality.

> Since you're using FAI, it's probably faster to just completely 
> reinstall the system (possibly preserving data partition(s)) than 
> risking RAID desync and related headaches. To keep the disk partitions 
> aligned, you could use the "mirror" space for an extra swap partition :)

Heh, maybe. :)

We're just going through and rebuilding a bunch of servers now. Better than
doing a dist-upgrade.

-- 
Andrew Ruthven, Wellington, New Zealand
and...@etc.gen.nz |
Catalyst Cloud:   | This space intentionally left blank
 https://catalystcloud.nz |



Re: RAID + UEFI

2023-09-20 Diskussionsfäden Diego Zuccato

TL;DR: IMO having /boot/uefi on (sw) RAID1 is not worth the headaches.
Long version follows.

That's quite normal. You should use older RAID format that places 
metadata at the end of the partition instead of the newer that places it 
at the beginning. And even so it's risky, since one of the partitions 
could get modified by other systems (the BIOS, for example) that aren't 
RAID-aware (that's also one of the reasons that lead to the newer 
format...).


Since you're using FAI, it's probably faster to just completely 
reinstall the system (possibly preserving data partition(s)) than 
risking RAID desync and related headaches. To keep the disk partitions 
aligned, you could use the "mirror" space for an extra swap partition :)


Diego

Il 20/09/2023 09:26, Andrew Ruthven ha scritto:

Hey,

Just a note that I've found that some hardware doesn't like /boot/efi 
being on RAID1. Which is rather disappointing.


But otherwise, the examples that Justin provided look very similar to 
what I've succesfully used (although sometimes without the RAID1 for 
/boot/efi!)


Cheers,
Andrew
--

Andrew Ruthven, Wellington, New Zealand
and...@etc.gen.nz |
Catalyst Cloud:   | This space intentionally left blank
  https://catalystcloud.nz |



--
Diego Zuccato
DIFA - Dip. di Fisica e Astronomia
Servizi Informatici
Alma Mater Studiorum - Università di Bologna
V.le Berti-Pichat 6/2 - 40127 Bologna - Italy
tel.: +39 051 20 95786


Re: RAID + UEFI

2023-09-20 Diskussionsfäden Andrew Ruthven
Hey,

Just a note that I've found that some hardware doesn't like /boot/efi being
on RAID1. Which is rather disappointing.

But otherwise, the examples that Justin provided look very similar to what
I've succesfully used (although sometimes without the RAID1 for /boot/efi!)

Cheers,
Andrew
-- 
Andrew Ruthven, Wellington, New Zealand
and...@etc.gen.nz |
Catalyst Cloud: | This space intentionally left blank
https://catalystcloud.nz |



Re: RAID + UEFI

2023-09-20 Diskussionsfäden Justin Cattle
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
#
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 vfatrw
mdcreateopts="--metadata=1.0"
raid1   / disk1.2,disk2.2 ext4defaults,noatime,discard
raid1   swap  disk1.3,disk2.3 swapsw


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
#
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 vfatrw
mdcreateopts="--metadata=1.0"
raid1   /boot disk1.2,disk2.2 ext4defaults,noatime,discard
raid1   - disk1.3,disk2.3 -   -

disk_config lvm fstabkey:uuid

vg vg md2
vg-root / 256M-   ext4defaults,noatime,discard
vg-swap swap  RAM:20% swapsw


Hope that helps.

Cheers,
Just


On Wed, 20 Sept 2023 at 08:14, Thomas Kloepfer <
thomas.kloep...@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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This email is confidential and may contain copyright material of 
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may not necessarily reflect the opinions and views of the members of the 
Ocado Group.

If you are not the intended recipient, please notify us 
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your responsibility to scan this message for viruses.

References to the 
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Hatfield, Hertfordshire, AL10 9UL.


RAID + UEFI

2023-09-20 Diskussionsfäden Thomas Kloepfer

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