Solving the error “mount: unknown filesystem type LVM2_member”

I once executed a command to mount a disk:

sudo mount /dev/sda3 /media/test

And noticed the following error:

mount: unknown filesystem type ‘LVM2_member’

The disk was partitioned under LVM, so to mount it you need to specify not /dev/sda3, but let’s see the correct name with the command:

sudo lvdisplay

In my case, it was /dev/ubuntu-vg/root, and mount it:

sudo mount /dev/ubuntu-vg/root /media/test


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  1. Thanks so much Vyacheslav Gapon, was cracking my head on how to address this issue.

  2. Thank you so much, I really hope your day is going well! You’ve helped me out with this.