Sometimes we have face this issue when mounting another existing Linux HDD or linux LVM.
When we trying to mount the partition it should be activated otherwise it will show the unknown filesystem type. for this we need to do 2 simple commands only. Run the following commands and check.
modprobe dm-mod
modprob utility is used to add loadable modules to kernel. this command load the necessary modules
vgchange -ay
to activate the volume
now scan the LVM
lvscan
you can use this command before starting modprobe also to check which are active and inactive.
Now mount the filesystem
mount /dev/volgrp/lgvol /mnt
When we trying to mount the partition it should be activated otherwise it will show the unknown filesystem type. for this we need to do 2 simple commands only. Run the following commands and check.
modprobe dm-mod
modprob utility is used to add loadable modules to kernel. this command load the necessary modules
vgchange -ay
to activate the volume
now scan the LVM
lvscan
you can use this command before starting modprobe also to check which are active and inactive.
Now mount the filesystem
mount /dev/volgrp/lgvol /mnt
