Removing logical volumes, volume groups, and physical volumes

To start with the commands used to remove, let's do the simple step of removing the img logical volume. First, we need to check whether it's mounted:

[root@rhel8 ~]# mount | grep img
/dev/mapper/storage-img on /srv/img type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)

As it is mounted, we need to dismount it:

[root@rhel8 ~]# umount /srv/img 
[root@rhel8 ~]# mount | grep img

The last command shows an empty output, which means that it isn't mounted. Let's proceed to remove it:

[root@rhel8 ~]# lvremove /dev/storage/img 
Do you really want to remove active logical volume storage/img? [y/n]: y
  Logical volume "img" successfully removed

Now, we can also remove the mount point:

[root@rhel8 ~]# rmdir /srv/img

And the removal of the logical volume is done. This process is not reversible, so run it carefully. Our disk distributions now look...