Volume group mylv not found Cannot process volume group mylv

Question

Hi Guys,

I have created one Logical Volume in my Linux system. I am trying to display the Logical Volume. But it is showing me the below error.

[root@localhost ~]# lvdisplay mylv
  Volume group "mylv" not found
  Cannot process volume group mylv

How can I find my Logical Volume?

Answer 1

Hi@akhtar,

You got this error because your command is not correct. You created your Logical Volume from your Volume Group. So you need to tell your Volume Group name as well. You can see the below command.

• If I try with only Logical Volume name. It gives me the below output.

[root@localhost ~]# lvdisplay mylv
  Volume group "mylv" not found
  Cannot process volume group mylv

• But I give my Volume Group name, it gives me the right output.

[root@localhost ~]# lvdisplay myvg/mylv
  --- Logical volume ---
  LV Path                /dev/myvg/mylv
  LV Name                mylv
  VG Name                myvg
  LV UUID                yEPJZN-5Ucq-sL2u-VEKU-Nlpt-iTMh-HrH2uf
  LV Write Access        read/write
  LV Creation host, time localhost.localdomain, 2020-07-08 14:08:36 -0400
  LV Status              available
  # open                 0
  LV Size                50.00 GiB
  Current LE             12800
  Segments               2
  Allocation             inherit
  Read ahead sectors     auto
  - currently set to     8192
  Block device           253:3

I hope this will solve your error.

Comments

Yes, It is working with ' :-) 

lvdisplay myvg/mylv'

but it is not working without including myvg ? 

Answer 2

Use lvscan and the absolute path for the logical volume.