Yrurtj

I'm gettind this error at boot:

grub error: disk 'lvid/caoMWu-o417-GMgh-6vFj-1qrw-iJMi-ypwm0f/Z2eotR-N0HN-nrol-3hUd-odMB-GzHy-4PrsnL' not found.
Entering rescue mode..

I can't even get the GRUB menu, the error message show immediately up.

Now here's the situation: I had to replace my motherboard because it was broken, and just after the change (I've replaced with an identical one) I'm not able to boot anymore.

This is my setup:
Archlinux distro, two hdd with a RAID1 and LVM builded on top of it.

Now I can't understand what happened, cause the UUID of the disk/partition should be remained the same even after mb replacement ?

What can I do/check to restore the system ?

Below some info about the LVM setup:

--- Volume group ---

  VG Name               server

  System ID             

  Format                lvm2

  Metadata Areas        1

  Metadata Sequence No  5

  VG Access             read/write

  VG Status             resizable

  MAX LV                0

  Cur LV                4

  Open LV               2

  Max PV                0

  Cur PV                1

  Act PV                1

  VG Size               2.73 TiB

  PE Size               4.00 MiB

  Total PE              715318

  Alloc PE / Size       715318 / 2.73 TiB

  Free  PE / Size       0 / 0   

  VG UUID               caoMWu-o417-GMgH-6vFj-1qrv-iJMi-ypwm0f





  --- Logical volume ---

  LV Path                /dev/server/boot

  LV Name                boot

  VG Name                server

  LV UUID                3Z70U8-Mc1W-aKQU-tORg-oiaT-P2kI-aYG74K

  LV Write Access        read/write

  LV Creation host, time archiso, 2015-11-06 08:51:19 +0100

  LV Status              available

  # open                 1

  LV Size                512.00 MiB

  Current LE             128

  Segments               1

  Allocation             inherit

  Read ahead sectors     auto

  - currently set to     256

  Block device           253:0



  --- Logical volume ---

  LV Path                /dev/server/swap

  LV Name                swap

  VG Name                server

  LV UUID                z8PdBc-DZRL-zsC5-190M-nyUl-k3cn-9gaYRo

  LV Write Access        read/write

  LV Creation host, time archiso, 2015-11-06 08:51:28 +0100

  LV Status              available

  # open                 0

  LV Size                4.00 GiB

  Current LE             1024

  Segments               1

  Allocation             inherit

  Read ahead sectors     auto

  - currently set to     256

  Block device           253:1



  --- Logical volume ---

  LV Path                /dev/server/archroot

  LV Name                archroot

  VG Name                server

  LV UUID                Z2eotR-N0HN-nroI-3hUd-odMB-GzHy-4PrsnL

  LV Write Access        read/write

  LV Creation host, time archiso, 2015-11-06 08:52:37 +0100

  LV Status              available

  # open                 1

  LV Size                20.00 GiB

  Current LE             5120

  Segments               1

  Allocation             inherit

  Read ahead sectors     auto

  - currently set to     256

  Block device           253:2



  --- Logical volume ---

  LV Path                /dev/server/storage

  LV Name                storage

  VG Name                server

  LV UUID                cccOsD-GBXu-pMws-e4bS-tCic-ZCFs-OstIf9

  LV Write Access        read/write

  LV Creation host, time archiso, 2015-11-06 08:52:52 +0100

  LV Status              available

  # open                 0

  LV Size                2.70 TiB

  Current LE             709046

  Segments               1

  Allocation             inherit

  Read ahead sectors     auto

  - currently set to     256

  Block device           253:3

and the /etc/fstab :

# /dev/mapper/server-archroot

UUID=c83b58a5-d4fd-4634-b6b7-1726ca6ffeb6   /           ext4        rw,relatime,data=ordered    0 1



# /dev/mapper/server-boot

UUID=1fffa9ae-ea36-4888-870e-47bd8fc16268   /boot       ext4        rw,relatime,data=ordered    0 2



# /dev/mapper/server-swap

UUID=a787eefb-692d-4d2a-9482-11196967ea62   none        swap        defaults    0 0



# /dev/mapper/server-storage

UUID=ae082954-b90a-482a-b002-e53f6f75df5a   /mnt/storage    ext4        users,rw,relatime,auto,exec,data=ordered

Have you tried update-grub2?

Now I can't understand what happened, cause the UUID of the disk/partition should be remained the same even after mb replacement ?

But new mobo could ascribe hdds in a different way, so now it is not possible to start even GRUB.

It seems that your motherboard changed the UUIDs of your disks and lvs as is apt to happen.

When you go into recovery mode, you'll need to run one of the following commands:

ls -l /dev/disk/by-uuid

blkid

To find the UUID of your boot partition.

If necessary, you can run fdisk -l to help find out which is the boot partition.

You can then add the correct UUIDs to /etc/fstab and you will be able to boot again with no issues.