vgscan

Scan for volume groups

$ sudo vgscan

$ sudo vgscan --mknodes

$ sudo vgscan -v

vgscan [options]

vgscan scans all supported LVM block devices in the system for volume groups. It builds the LVM cache file that holds current information about volume groups on the system.

--mknodes

Create special device files in /dev needed to access logical volumes

Verbose mode; display progress information

Scan only devices in the LVM cache file

Continue even if locking fails

Allow operations on volume groups with missing physical volumes

vgscan is typically run automatically during system boot. Manually running vgscan is rarely necessary on modern systems as LVM automatically detects changes. Use vgchange -a y to activate volume groups after scanning.

vgscan is part of LVM2 (Logical Volume Manager), providing dynamic disk management capabilities for Linux systems.

vgdisplay(8), vgchange(8), pvscan(8), lvscan(8)