pvremove command is used to remove an existing physical volume from a volume group. This command is used when you want to remove a physical volume from a volume group or when you want to completely remove a physical volume from the system.
The syntax for the
pvremove command is as follows:
pvremove [options] physical_volume
physical_volume parameter is the name of the physical volume that you want to remove.
To remove a physical volume named
/dev/sdb1, run the following command:
You can also remove multiple physical volumes at once by specifying their names separated by spaces:
pvremove /dev/sdb1 /dev/sdc1
Specific use cases
Here are some specific use cases for the
- Removing a physical volume from a volume group: If you want to remove a physical volume from a volume group, you must first remove any logical volumes that are on the physical volume using the
lvremovecommand. Then, you can use the
vgreducecommand to remove the physical volume from the volume group. Finally, you can use the
pvremovecommand to remove the physical volume from the system.
- Completely removing a physical volume: If you want to completely remove a physical volume from the system, you can use the
pvremovecommand to remove the physical volume from any volume groups it is a part of and then physically remove the disk from the system.
pvremove command has the following options:
||Force removal of physical volume(s) without confirmation.|
||Display help message and exit.|
||Test mode. Only show what would be done, but do not actually remove physical volume(s).|
||Verbose mode. Print more information about what is being done.|
Here are some troubleshooting tips for the
- Error message “Device or resource busy”: This error message means that the physical volume you are trying to remove is currently in use. Make sure that there are no logical volumes or file systems mounted on the physical volume and that no processes are using the physical volume.
- Error message “Can’t open /dev/sdb1 exclusively”: This error message means that another program is currently accessing the physical volume you are trying to remove. Make sure that no other programs are using the physical volume and try again.
pvremovecommand does not delete any data on the physical volume. If you want to delete all data on the physical volume, you must use a tool like
ddto overwrite the data before running the
- Be careful when using the
pvremovecommand, as it can permanently delete data. Make sure that you have a backup of any important data before running this command.