man vgmknodes (Administration système) - recreate volume group directory and logical volume special files
NAME
vgmknodes - recreate volume group directory and logical volume special files
SYNOPSIS
vgmknodes [-d/--debug] [-h/-?/--help] [-v/--verbose] [[VolumeGroupName | LogicalVolumePath]...]
DESCRIPTION
Checks the LVM2 special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused ones.
OPTIONS
See lvm for common options.