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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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NAME | SYNOPSIS | DESCRIPTION | USAGE | OPTIONS | VARIABLES | ENVIRONMENT VARIABLES | SEE ALSO | COLOPHON |
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LVMCONFIG(8) System Manager's Manual LVMCONFIG(8)
lvmconfig — Display and manipulate configuration information
lvmconfig
[ option_args ]
[ position_args ]
lvmconfig, lvm config, lvm dumpconfig (for compatibility reasons,
to be phased out) produce formatted output from the LVM
configuration tree. The sources of the configuration data include
lvm.conf(5) and command line settings from --config.
lvmconfig
[ -f|--file String ]
[ -l|--list ]
[ --atversion String ]
[ --typeconfig current|default|diff|full|list|missing|new|
profilable|profilable-command|profilable-metadata ]
[ --ignoreadvanced ]
[ --ignoreunsupported ]
[ --ignorelocal ]
[ --mergedconfig ]
[ --metadataprofile String ]
[ --sinceversion String ]
[ --showdeprecated ]
[ --showunsupported ]
[ --validate ]
[ --withsummary ]
[ --withcomments ]
[ --withgeneralpreamble ]
[ --withlocalpreamble ]
[ --withspaces ]
[ --unconfigured ]
[ --withversions ]
[ COMMON_OPTIONS ]
[ String ... ]
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 ]
--atversion String
Specify an LVM version in x.y.z format where x is the major
version, the y is the minor version and z is the patchlevel
(e.g. 2.2.106). When configuration is displayed, the con‐
figuration settings recognized at this LVM version will be
considered only. This can be used to display a configura‐
tion that a certain LVM version understands and which does
not contain any newer settings for which LVM would issue a
warning message when checking the configuration.
--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
Devices that the command can use. This option can be re‐
peated 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) de‐
vices/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.
-f|--file String
Write output to the named file.
-h|--help
Display help text.
--ignoreadvanced
Exclude advanced configuration settings from the output.
--ignorelocal
Ignore the local section. The local section should be de‐
fined in the lvmlocal.conf file, and should contain config
settings specific to the local host which should not be
copied to other hosts.
--ignoreunsupported
Exclude unsupported configuration settings from the output.
These settings are either used for debugging and develop‐
ment purposes only or their support is not yet complete and
they are not meant to be used in production. The current
and diff types include unsupported settings in their output
by default, all the other types ignore unsupported set‐
tings.
--journal String
Record information in the systemd journal. This informa‐
tion 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. de‐
bug: record full command debugging.
-l|--list
List config settings with summarizing comment. This is the
same as using options --typeconfig list --withsummary.
--lockopt String
Used to pass options for special cases to lvmlockd. See
lvmlockd(8) for more information.
--longhelp
Display long help text.
--mergedconfig
When the command is run with --config and/or --commandpro‐
file (or using LVM_COMMAND_PROFILE environment variable),
--profile, or --metadataprofile, merge all the contents of
the "config cascade" before displaying it. Without merg‐
ing, only the configuration at the front of the cascade is
displayed. See lvm.conf(5) for more information about con‐
fig.
--metadataprofile String
The metadata profile to use for command configuration. See
lvm.conf(5) for more information about profiles.
--nohints
Do not use the hints file to locate devices for PVs. A com‐
mand may read more devices to find PVs when hints are not
used. The command will still perform standard hint file in‐
validation where appropriate.
--nolocking
Disable locking.
--profile String
An alias for --commandprofile or --metadataprofile, depend‐
ing on the command.
-q|--quiet ...
Suppress output and log messages. Overrides --debug and
--verbose. Repeat once to also suppress any prompts with
answer 'no'.
--showdeprecated
Include deprecated configuration settings in the output.
These settings are deprecated after a certain version. If a
concrete version is specified with --atversion, deprecated
settings are automatically included if the specified ver‐
sion is lower than the version in which the settings were
deprecated. The current and diff types include deprecated
settings in their output by default, all the other types
ignore deprecated settings.
--showunsupported
Include unsupported configuration settings in the output.
These settings are either used for debugging or development
purposes only, or their support is not yet complete and
they are not meant to be used in production. The current
and diff types include unsupported settings in their output
by default, all the other types ignore unsupported set‐
tings.
--sinceversion String
Specify an LVM version in x.y.z format where x is the major
version, the y is the minor version and z is the patchlevel
(e.g. 2.2.106). This option is currently applicable only
with --typeconfig new to display all configuration settings
introduced since given version.
-t|--test
Run in test mode. Commands will not update metadata. This
is implemented by disabling all metadata writing but never‐
theless 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.
--typeconfig current|default|diff|full|list|missing|new|
profilable|profilable-command|profilable-metadata
current prints the config settings that would be applied to
an lvm command (assuming the command does not override them
on the command line.) This includes: settings that have
been modified in lvm config files, settings that get their
default values from config files, and default settings that
have been uncommented in config files. default prints all
settings with their default values. Changes made in lvm
config files are not reflected in the output. Some set‐
tings get their default values internally, and these set‐
tings are printed as comments. Other settings get their
default values from config files, and these settings are
not printed as comments. diff prints only config settings
that have been modified from their default values in config
files (the difference between current and default.) full
prints every setting uncommented and set to the current
value, i.e. how it would be used by an lvm command. This
includes settings modified in config files, settings that
usually get defaults internally, and settings that get de‐
faults from config files. list prints all config names
without values. missing prints settings that are missing
from the lvm config files. A missing setting that usually
gets its default from config files is printed uncommented
and set to the internal default. Settings that get their
default internally and are not set in config files are
printed commented with the internal default. new prints
config settings that have been added since the lvm version
specified by --sinceversion. They are printed with their
default values. profilable prints settings with their de‐
fault values that can be set from a profile. profil‐
able-command prints settings with their default values that
can be set from a command profile. profilable-metadata
prints settings with their default values that can be set
from a metadata profile. Also see lvm.conf(5).
--unconfigured
Internal option used for generating config file during
build.
--validate
Validate current configuration used and exit with appropri‐
ate return code. The validation is done only for the con‐
figuration at the front of the "config cascade". To vali‐
date the whole merged configuration tree, also use
--mergedconfig. The validation is done even if lvm.conf(5)
config/checks is disabled.
-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.
--withcomments
Display a full comment for each configuration node. For
deprecated settings, also display comments about depreca‐
tion.
--withgeneralpreamble
Include general config file preamble.
--withlocalpreamble
Include local config file preamble.
--withspaces
Where appropriate, add more spaces in output for better
readability.
--withsummary
Display a one line comment for each configuration node.
--withversions
Also display a comment containing the version of introduc‐
tion for each configuration node. If the setting is depre‐
cated, also display the version since which it is deprecat‐
ed.
-y|--yes
Do not prompt for confirmation interactively but always as‐
sume the answer yes. Use with extreme caution. (For auto‐
matic no, see -qq.)
String See the option description for information about the string
content.
Size[UNIT]
Size is an input number that accepts an optional unit. In‐
put 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.)
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.
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)
This page is part of the lvm2 (Logical Volume Manager 2) project.
Information about the project can be found at
⟨http://www.sourceware.org/lvm2/⟩. If you have a bug report for
this manual page, see ⟨https://github.com/lvmteam/lvm2/issues⟩.
This page was obtained from the project's upstream Git repository
⟨git://sourceware.org/git/lvm2.git⟩ on 2025-08-11. (At that time,
the date of the most recent commit that was found in the
repository was 2025-08-08.) If you discover any rendering
problems in this HTML version of the page, or you believe there is
a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
[email protected]
Red Hat, Inc. LVM TOOLS 2.03.35(2)-git (2025-07-30) LVMCONFIG(8)
Pages that refer to this page: lvm.conf(5), lvmreport(7), lvmthin(7), lvmvdo(7), lvchange(8), lvconvert(8), lvcreate(8), lvdisplay(8), lvextend(8), lvm(8), lvmconfig(8), lvmdevices(8), lvmdiskscan(8), lvm-fullreport(8), lvm-lvpoll(8), lvreduce(8), lvremove(8), lvrename(8), lvresize(8), lvs(8), lvscan(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), vgconvert(8), vgcreate(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)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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