| VGSCAN(8) | System Manager's Manual | VGSCAN(8) | 
NAME
 vgscan - scan all disks for volume groups and rebuild caches
SYNOPSIS
 vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose]
DESCRIPTION
 vgscan scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devices in the system looking for LVM physical volumes and volume groups.  Define a filter in  
lvm.conf(5) to restrict the scan to avoid a CD ROM, for example.
In LVM2, vgscans take place automatically; but you might still need to run one explicitly after changing hardware.
 
OPTIONS
 See  
lvm for common options.
- 
--mknodes
- 
Also checks the LVM special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused ones.
 
SEE ALSO
 lvm(8), vgcreate(8), vgchange(8)