Create-LVM-Partition

Step 1: Prepare the disk

First you need to identify the new disk you want to use for LVM. Use the following command to view the disks:

 lsblk

Step 2: Create LVM partition:

Create a new partition using the fdisk or parted tool. For example:

sudo fdisk /dev/sdb

In the fdisk environment, follow these steps:

• Press the {n} key to create a new partition.
• Select the partition type (Primary or Extended). Usually Primary.
• Specify the partition size.
• Then change the partition type with {t} and enter the code {8e} (LVM).
• Save the changes with {w}

Step 3: Set the partition as a Physical Volume (PV):

To use LVM, you need to convert the partition to a physical volume (PV):

sudo pvcreate /dev/sdb1

Step 4: Create Volume Group (VG):

Create a Volume Group and add your physical volume to it:

sudo vgcreate my_vg /dev/sdb1

• Here my_vg is the name of the volume group, which you can change.

Step 5: Create Logical Volume (LV):

Now you can create one or more Logical Volumes within your volume group. For example, to create a 10GB Logical Volume:

sudo lvcreate -L 10G -n my_lv my_vg

• -L 10G: Specifies the logical volume size.
• -n my_lv: Logical volume name (here my_lv).
• my_vg: Volume group name.

Step 6: Format the logical volume:

To use a logical volume, you must format it. For example, with the ext4 file system:

sudo mkfs.ext4 /dev/my_vg/my_lv

Step 7: Mount the logical volume :

To use a logical volume, you must mount it:

• Create a directory for the mount:

  sudo mkdir /mnt/my_lv
  

• Mount the logical volume:

  sudo mount /dev/my_vg/my_lv /mnt/my_lv
  

• For permanent mount, add it to the fstab file. Edit the /etc/fstab file and add the following line:

   /dev/my_vg/my_lv /mnt/my_lv ext4 defaults 0 0
  

Step 8: Check the settings:

To check the LVM status, use the following commands:

• Viewing physical volumes:

  sudo pvs
  

• View volume groups:

   sudo vgs
  

• Viewing logical volumes:

    sudo lvs