vgchange --version (return code: 0)
WARNING: Running as a non-root user. Functionality may be unavailable.
/run/lvm/lvmetad.socket: connect failed: Permission denied
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
LVM version: 2.02.133(2) (2015-10-30)
Library version: 1.02.110 (2015-10-30)
/dev/mapper/control: open failed: Permission denied
Failure to communicate with kernel device-mapper driver.
Incompatible libdevmapper (unknown version) and kernel driver (unknown version).
vgchange --help (return code: 0)
WARNING: Running as a non-root user. Functionality may be unavailable.
/run/lvm/lvmetad.socket: connect failed: Permission denied
WARNING: Failed to connect to lvmetad. Falling back to internal scanning.
vgchange: Change volume group attributes
vgchange
[-A|--autobackup {y|n}]
[--alloc AllocationPolicy]
[-P|--partial]
[--commandprofile ProfileName]
[-d|--debug]
[--detachprofile]
[-h|--help]
[--ignorelockingfailure]
[--ignoremonitoring]
[--ignoreskippedcluster]
[-K|--ignoreactivationskip]
[--metadataprofile ProfileName]
[--monitor {y|n}]
[--[vg]metadatacopies #copies]
[--poll {y|n}]
[--noudevsync]
[--refresh]
[-S|--select Selection]
[--sysinit]
[--systemid SystemID]
[-t|--test]
[-u|--uuid]
[-v|--verbose]
[--version]
{-a|--activate [a|e|l]{y|n} |
[--activationmode {complete|degraded|partial}]
-c|--clustered {y|n} |
-x|--resizeable {y|n} |
-l|--logicalvolume MaxLogicalVolumes |
-p|--maxphysicalvolumes MaxPhysicalVolumes |
-s|--physicalextentsize PhysicalExtentSize[bBsSkKmMgGtTpPeE] |
--addtag Tag |
--deltag Tag}
[VolumeGroupName...]