[linux-lvm] md: personality for level 1 is not loaded

[MegaBrutal]

Hi all,

I have an inconvenient boot-time phenomenon which prevents me from
booting a RAID1 mirrored root volume.

Reported it on Launchpad:
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1509717

It's most probably distro-specific, but I wonder if you have some comments.

Thanks if you check it out!


Best regards,
MegaBrutal

[Heinz Mauelshagen]

Hi,

this is likely caused by a missing raid1 module in the initramfs,
as now commented on the referenced bz as well.

Your Ubuntu kernel package needs fixing itr.

- lvmguy

Post by MegaBrutal
Hi all,
I have an inconvenient boot-time phenomenon which prevents me from
booting a RAID1 mirrored root volume.
https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1509717
It's most probably distro-specific, but I wonder if you have some comments.
Thanks if you check it out!
Best regards,
MegaBrutal
_______________________________________________
linux-lvm mailing list
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

[James Hawtin]

I find it is important with md to make sure your /boot or / if you do not have one uses metadata version 0.90 which sticks the metadata at the end of the disk, not the beginning. Grub does not really understand metadisk however a mirrored fs with metadata at the end can be read read only like a normal fs, and that is how it works.

James

Post by Heinz Mauelshagen
Hi,
this is likely caused by a missing raid1 module in the initramfs,
as now commented on the referenced bz as well.
Your Ubuntu kernel package needs fixing itr.
- lvmguy

Post by MegaBrutal
Hi all,
I have an inconvenient boot-time phenomenon which prevents me from
booting a RAID1 mirrored root volume.

https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1509717

Post by MegaBrutal
It's most probably distro-specific, but I wonder if you have some

comments.

Post by MegaBrutal
Thanks if you check it out!
Best regards,
MegaBrutal
_______________________________________________
linux-lvm mailing list
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

_______________________________________________
linux-lvm mailing list
https://www.redhat.com/mailman/listinfo/linux-lvm
read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

[Dragan Milivojević]

Post by James Hawtin
I find it is important with md to make sure your /boot or / if you do not
have one uses metadata version 0.90 which sticks the metadata at the end of
the disk, not the beginning. Grub does not really understand metadisk
however a mirrored fs with metadata at the end can be read read only like a
normal fs, and that is how it works.

grub2 fully supports raid so grub should not be an issue, 0.9 metadata
is quite ancient
and should not be used. Metadata 1.0 (1.0 not 1) should be used with
boot loaders
that do not understand raid (EFI ESP is a good use case for 1.0 metadata).

Dragan