Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top
#fdisk -l

/dev/sdb1   *           1        9702    77931283+  8e  Linux LVM

I tried the following command:

#mkdir /media/backup
#mount /dev/sdb1 /media/backup

mount: unknown file system 'LVM2_member'

How do I mount it?

share|improve this question
up vote 6 down vote accepted

I found the solution

/dev/sdc5 intranet lvm2 a- 372,37G 0

# lvdisplay /dev/intranet
LV Name                /dev/intranet/root

#mount /dev/intranet/root /media/backup
share|improve this answer
Note that on Ubuntu 14+, if you just sudo apt-get install lvm2 and reboot, the lvm2 volume will auto mount in the file browser. – y3sh Jan 6 at 16:46

You probably want to look at the *scan commands, pvscan, vgscan and lvscan. This will search for the various lvm components. If /dev/sdb1 is a physical volume that has a volume group with a logical volume, it should show up. If lvscan produces something like:

ACTIVE '/dev/vg00/home' [9.00 GB] inherit

Then you can mount /dev/vg00/home as /home.

share|improve this answer

Did you create a filesystem on the new device?

mkfs -j /dev/sdb1

or mkfs.ext3 /dev/sdb1

share|improve this answer
the "new device" is the old hard disk that were already working in another machine as the boot partition. I don't want to overwrite nothing on it – Jader Dias Jul 6 '09 at 19:40
Indeed you don't. Sorry for the assumptions... After re-reading it is a bit more plain but I see you have the answer below. – oneodd1 Jul 6 '09 at 20:28

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.