Linux Command Library
commands
Commands
basic
Basic
tips
Tips

vgscan

scan all disks for volume groups and rebuild caches

vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose]

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.

See lvm(8) 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.

--cache

Scan devices for LVM physical volumes and volume groups and instruct the lvmetad daemon to update its cached state accordingly.

lvm(8), vgcreate(8), vgchange(8)

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