To rename a Logical Volume (LV) in Linux, the lvrename command is used. Here are the detailed steps:

1. Check Current Logical Volume Information: You can use the lvdisplay command to view the current logical volume information:

   #sudo lvdisplay
   

2. Rename the Logical Volume: To rename a logical volume, use the lvrename command. Suppose you want to rename a logical volume from old_lv_name to new_lv_name, and the volume group name is vg_name. You can execute the following command:

   #sudo lvrename /dev/vg_name/old_lv_name /dev/vg_name/new_lv_name
   

   Alternatively, you can use:

   #sudo lvrename vg_name old_lv_name new_lv_name
   

3. Update Relevant Configurations: If your system has any scripts, configuration files, or mount points that depend on the old logical volume name, make sure to update them to use the new logical volume name.

   Example:

   Suppose your volume group name is my_vg, the old logical volume name is old_lv, and the new logical volume name is new_lv. You can rename it as follows:

   #sudo lvrename my_vg old_lv new_lv
   
   

   After executing the above command, the logical volume name will be changed from old_lv to new_lv.