vgreduce --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).
vgreduce --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.
vgreduce: Remove physical volume(s) from a volume group
vgreduce
[-a|--all]
[-A|--autobackup y|n]
[--commandprofile ProfileName]
[-d|--debug]
[-h|--help]
[--mirrorsonly]
[--removemissing]
[-f|--force]
[-t|--test]
[-v|--verbose]
[--version]
VolumeGroupName
[PhysicalVolumePath...]