vgmknodes
Create the special files for volume group devices in /dev
SYNOPSIS
vgmknodes
[ option_args ]
[ position_args ]
DESCRIPTION
vgmknodes checks the LVM device nodes in /dev that are needed for active LVs and creates any that are missing and removes unused ones.
This command should not usually be needed if all the system components are interoperating correctly.
USAGE
vgmknodes
[ --ignorelockingfailure ]
[ --refresh ]
[ --reportformat basic|json|json_std ]
[ COMMON_OPTIONS ]
[ VG|LV|Tag ... ]
Common options for lvm:
[ -d|--debug ]
[ -h|--help ]
[ -q|--quiet ]
[ -t|--test ]
[ -v|--verbose ]
[ -y|--yes ]
[ --commandprofile String ]
[ --config String ]
[ --devices PV ]
[ --devicesfile String ]
[ --driverloaded y|n ]
[ --journal String ]
[ --lockopt String ]
[ --longhelp ]
[ --nohints ]
[ --nolocking ]
[ --profile String ]
[ --version ]
OPTIONS
--commandprofile String
The command profile to use for command configuration. See
lvm.conf(5) for more information about profiles.
--config String
Config settings for the command. These override
lvm.conf(5) settings. The String arg uses the same
format as lvm.conf(5), or may use section/field syntax.
See lvm.conf(5) for more information about config.
-d|--debug ...
Set debug level. Repeat from 1 to 6 times to increase the detail of
messages sent to the log file and/or syslog (if configured).
--devices PV
Restricts the devices that are visible and accessible to the command.
Devices not listed will appear to be missing. This option can be
repeated, or accepts a comma separated list of devices. This overrides
the devices file.
--devicesfile String
A file listing devices that LVM should use. The file must exist in
/etc/lvm/devices/ and is managed with the
lvmdevices(8) command. This overrides the
lvm.conf(5) devices/devicesfile and
devices/use_devicesfile settings.
--driverloaded
y|n
If set to no, the command will not attempt to use device-mapper. For
testing and debugging.
-h|--help
Display help text.
--ignorelockingfailure
Allows a command to continue with read-only metadata operations after
locking failures.
--journal String
Record information in the systemd journal. This information is in
addition to information enabled by the lvm.conf log/journal setting.
command: record information about the command. output: record the
default command output. debug: record full command debugging.
--lockopt String
Used to pass options for special cases to lvmlockd. See
lvmlockd(8) for more information.
--longhelp
Display long help text.
--nohints
Do not use the hints file to locate devices for PVs. A command may read
more devices to find PVs when hints are not used. The command will still
perform standard hint file invalidation where appropriate.
--nolocking
Disable locking. Use with caution, concurrent commands may produce
incorrect results.
--profile String
An alias for --commandprofile or --metadataprofile, depending on the
command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and --verbose.
Repeat once to also suppress any prompts with answer 'no'.
--refresh
If the LV is active, reload its metadata. This is not necessary in
normal operation, but may be useful if something has gone wrong, or if
some form of manual LV sharing is being used.
--reportformat
basic|json|json_std
Overrides current output format for reports which is defined globally by
the report/output_format setting in lvm.conf(5).
basic is the original format with columns and rows. If
there is more than one report per command, each report is prefixed with
the report name for identification. json produces
report output in JSON format. json_std produces report
output in JSON format which is more compliant with JSON standard. See
lvmreport(7) for more information.
-t|--test
Run in test mode. Commands will not update metadata. This is implemented
by disabling all metadata writing but nevertheless returning success to
the calling function. This may lead to unusual error messages in
multi-stage operations if a tool relies on reading back metadata it
believes has changed but hasn't.
-v|--verbose ...
Set verbose level. Repeat from 1 to 4 times to increase the detail of
messages sent to stdout and stderr.
--version
Display version information.
-y|--yes
Do not prompt for confirmation interactively but always assume the
answer yes. Use with extreme caution. (For automatic no, see -qq.)
VARIABLES
- VG
-
Volume Group name. See lvm(8) for valid names.
- LV
-
Logical Volume name. See lvm(8) for valid names. An LV positional arg generally includes the VG name and LV name, e.g. VG/LV.
- Tag
-
Tag name. See lvm(8) for information about tag names and using tags in place of a VG, LV or PV.
- String
-
See the option description for information about the string content.
- Size[UNIT]
-
Size is an input number that accepts an optional unit. Input units are always treated as base two values, regardless of capitalization, e.g. 'k' and 'K' both refer to 1024. The default input unit is specified by letter, followed by |UNIT. UNIT represents other possible input units: b|B is bytes, s|S is sectors of 512 bytes, k|K is KiB, m|M is MiB, g|G is GiB, t|T is TiB, p|P is PiB, e|E is EiB. (This should not be confused with the output control --units, where capital letters mean multiple of 1000.)
ENVIRONMENT VARIABLES
See lvm(8) for information about environment variables used by lvm. For example, LVM_VG_NAME can generally be substituted for a required VG parameter.
SEE ALSO
lvm(8), lvm.conf(5), lvmconfig(8), lvmdevices(8), pvchange(8), pvck(8), pvcreate(8), pvdisplay(8), pvmove(8), pvremove(8), pvresize(8), pvs(8), pvscan(8), vgcfgbackup(8), vgcfgrestore(8), vgchange(8), vgck(8), vgcreate(8), vgconvert(8), vgdisplay(8), vgexport(8), vgextend(8), vgimport(8), vgimportclone(8), vgimportdevices(8), vgmerge(8), vgmknodes(8), vgreduce(8), vgremove(8), vgrename(8), vgs(8), vgscan(8), vgsplit(8), lvcreate(8), lvchange(8), lvconvert(8), lvdisplay(8), lvextend(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(8), lvm-fullreport(8), lvm-lvpoll(8), blkdeactivate(8), lvmdump(8), dmeventd(8), lvmpolld(8), lvmlockd(8), lvmlockctl(8), cmirrord(8), lvmdbusd(8), fsadm(8), lvmsystemid(7), lvmreport(7), lvmcache(7), lvmraid(7), lvmthin(7), lvmvdo(7), lvmautoactivation(7)