How to delete Linux LVM volumes

CentOS / RHEL : How to delete LVM volume

1. Delete the entry of the mount point from the /etc/fstab : # cat /etc/fstab ... /dev/mapper/datavg-testlv /data01 ext4 defaults 0 0 ...
2. Unmount the mount point : ...
3. Disable lvm : ...
4. Delete lvm volume : ...
5. Disable volume group : ...
6. Delete volume group : ...
7. Delete physical Volumes being used for the volume group “datavg” :

1. How do I remove a logical volume in Linux?
2. How do you deactivate LV?
3. How do I uninstall LVS?
4. Does Lvremove delete data?
5. How do I see logical volumes in Linux?
6. How do I start LVM in Linux?
7. How do you check if VG is active or not?
8. How do I remove physical volume in Linux?
9. How reduce VG size in Linux?
10. How increase LVM size in Linux?
11. How do you destroy LVM?
12. How do I rename a logical volume in Linux?

How do I remove a logical volume in Linux?

To delete a logical volume you need to first make sure the volume is unmounted, and then you can use lvremove to delete it. You can also remove a volume group once the logical volumes have been deleted and a physical volume after the volume group is deleted.

How do you deactivate LV?

You may need to make a LVM volume group inactive and thus unknown to the kernel. To deactivate a volume group, use the -a ( --activate ) argument of the vgchange command.

How do I uninstall LVS?

To delete an active LVM partition, open up a terminal and gain root with sudo -s. Then, run the cat command, in combination with the grep command to filter out the names of the LV partitions. Using the lvremove command, remove all volumes from the LVM setup on the drive.

Does Lvremove delete data?

1 Answer. No, lvremove only destroys the metadata identifying the logical volume and the specific extents which it used. It is possible to recover the data that used to be in the volume, if specific steps were not taken to destroy it.

How do I see logical volumes in Linux?

There are three commands you can use to display properties of LVM logical volumes: lvs , lvdisplay , and lvscan . The lvs command provides logical volume information in a configurable form, displaying one line per logical volume. The lvs command provides a great deal of format control, and is useful for scripting.

How do I start LVM in Linux?

The procedure to mount LVM partition in Linux as follows:

1. Run vgscan command scans all supported LVM block devices in the system for VGs.
2. Execute vgchange command to activate volume.
3. Type lvs command to get information about logical volumes.
4. Create a mount point using the mkdir command.

How do you check if VG is active or not?

You may check the status of the volume group by issuing the lsvg command. Depending on your configuration, the lsvg command returns the following settings: VG STATE will be active if it is varied on either actively or passively.

How do I remove physical volume in Linux?

To remove any physical volume in a volume group vgreduce command can be used. The vgreduce command shrinks the volume group by removing one or more PVs. We can then either use these free PVS in another VG or remove them from the LVM configuration.

How reduce VG size in Linux?

Let's wee what are the 5 steps below.

1. unmount the file system for reducing.
2. Check the file system after unmount.
3. Reduce the file system.
4. Reduce the Logical Volume size than Current size.
5. Recheck the file system for error.
6. Remount the file-system back to stage.

How increase LVM size in Linux?

Extend LVM manually

1. Extend the physical drive partition: sudo fdisk /dev/vda – Enter the fdisk tool to modify /dev/vda. ...
2. Modify (extend) the LVM: Tell LVM the physical partition size has changed: sudo pvresize /dev/vda1. ...
3. Resize the file system: sudo resize2fs /dev/COMPbase-vg/root.

How do you destroy LVM?

CentOS / RHEL : How to delete LVM volume

1. Delete the entry of the mount point from the /etc/fstab : # cat /etc/fstab ... /dev/mapper/datavg-testlv /data01 ext4 defaults 0 0 ...
2. Unmount the mount point : ...
3. Disable lvm : ...
4. Delete lvm volume : ...
5. Disable volume group : ...
6. Delete volume group : ...
7. Delete physical Volumes being used for the volume group “datavg” :

How do I rename a logical volume in Linux?

To rename an existing logical volume, use the lvrename command. Either of the following commands renames logical volume lvold in volume group vg02 to lvnew .