How do I mount RHEL LVs in/on the recovery server ?

Harry Carmichael 0

Need to boot from the old kernel - currently trying to change it by creating a recovery image and trying to mount the drive in/on that - problem is that / is on a LV .

Get the error:

root@repair-AZSU-DN:/# mount /dev/sdc2 /mnt2

mount: /mnt2: unknown filesystem type 'LVM2_member'.

root@repair-AZSU-DN:/#

[ this is why I don't put root on LVM ]

SadiqhAhmed-MSFT 46,206 Reputation points Microsoft Employee

2024-08-23T06:45:12.51+00:00

@Harry Carmichael Are you using Azure Site Recovery?

FYI: snippet from the MS doc - https://azure.microsoft.com/en-us/blog/new-azure-migrate-and-azure-site-recovery-enhancements-for-cloud-migration/#:~:text=With%20the%20latest%20update%2C%20ASR%20now%20supports%20directories%20in%20different,and%20directories%20on%20multiple%20disks.

Support matrix link - https://learn.microsoft.com/en-us/azure/site-recovery/azure-to-azure-support-matrix
Harry Carmichael 0 Reputation points

2024-08-23T12:09:53.51+00:00

@SadiqhAhmed-MSFT thank you for the links - interesting to see that Azure supports what us old farts call really bad practice ( back from the days of physical hard drives ).

1 answer

Harry Carmichael 0 Reputation points

2024-08-23T12:02:25.68+00:00
Boot to another kernel ( GRUB ). On most systems the grub menue is displayed at boot time on the console - Azure starts the console AFTER grub.

easy solution:

start VM - open virtual console

start Azure Shell in another session

in the shell

Restart-AzVM -ResourceGroupName "ResourceGroup11" -Name "VirtualMachine07"

back on the virtual console hit esc repeatedly as it reboots, this gets you to the GRUB screen.
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SadiqhAhmed-MSFT 46,206 Reputation points Microsoft Employee

2024-08-23T17:13:52.3866667+00:00

@Harry Carmichael Thanks for sharing the solution. This should be helpful to others looking for a similar solution.
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How do I mount RHEL LVs in/on the recovery server ?

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