mount: unknown filesystem type ‘LVM2_member’.

When I try to mount a partition, I get the following error

This is because the disk is LVM. First of all identify the name of the volume group and logical volume.

Example

From the above result, we found the server has 3 logical volumes. The biggest volume is root. Other volumes swap and tmp we can ignore. So the device name is

Next run

Example

Now you should be able to mount with disk using command

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