Provided by: lvm2_2.03.16-2ubuntu1_amd64 bug

NAME

       vgcfgrestore — Restore volume group configuration

SYNOPSIS

       vgcfgrestore option_args position_args
           [ option_args ]
           [ position_args ]

           --commandprofile String
           --config String
        -d|--debug
           --devices PV
           --devicesfile String
           --driverloaded y|n
        -f|--file String
           --force
        -h|--help
           --journal String
        -l|--list
           --lockopt String
           --longhelp
        -M|--metadatatype lvm2
           --nohints
           --nolocking
           --profile String
        -q|--quiet
        -t|--test
        -v|--verbose
           --version
        -y|--yes

DESCRIPTION

       vgcfgrestore  restores  the  metadata  of  a  VG  from  a  text  back  up file produced by
       vgcfgbackup. This writes VG metadata onto the devices specifed in back up file.

       A back up file can be specified with --file.  If no backup file  is  specified,  the  most
       recent  one is used. Use --list for a list of the available back up and archive files of a
       VG.

       WARNING: When a VG contains thin pools, changes to thin metadata cannot be  reverted,  and
       data  loss may occur if thin metadata has changed. The force option is required to restore
       in this case.

USAGE

       Restore VG metadata from last backup.

       vgcfgrestore VG
           [ COMMON_OPTIONS ]

       —

       Restore VG metadata from specified file.

       vgcfgrestore -f|--file String VG
           [ COMMON_OPTIONS ]

       —

       List all VG metadata backups.

       vgcfgrestore -l|--list VG
           [ COMMON_OPTIONS ]

       —

       List one VG metadata backup file.

       vgcfgrestore -l|--list -f|--file String
           [ COMMON_OPTIONS ]
           [ VG ]

       —

       Common options for command:
           [ -M|--metadatatype lvm2 ]
           [    --force ]

       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.

       -f|--file String
              Read  metadata  backup  from  the  named  file.   Usually  this file was created by
              vgcfgbackup.

       --force ...
              Force metadata restore even with thin pool LVs.  Use  with  extreme  caution.  Most
              changes  to  thin  metadata  cannot  be reverted.  You may lose data if you restore
              metadata that does not match the thin pool kernel metadata precisely.

       -h|--help
              Display help text.

       --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.

       -l|--list
              List  metadata  backup  and  archive  files pertaining to the VG.  May be used with
              --file. Does not restore the VG.

       --lockopt String
              Used to pass options for special cases  to  lvmlockd.   See  lvmlockd(8)  for  more
              information.

       --longhelp
              Display long help text.

       -M|--metadatatype lvm2
              Specifies  the  type  of on-disk metadata to use.  lvm2 (or just 2) is the current,
              standard format.  lvm1 (or just 1) is no longer used.

       --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'.

       -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.

       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.

NOTES

       To replace PVs, vgdisplay --partial --verbose will show the UUIDs and  sizes  of  any  PVs
       that  are  no longer present. If a PV in the VG is lost and you wish to substitute another
       of the same size,  use  pvcreate  --restorefile  filename  --uuid  uuid  (plus  additional
       arguments  as  appropriate)  to initialise it with the same UUID as the missing PV. Repeat
       for all other missing PVs in the VG.  Then use vgcfgrestore --file filename to restore the
       VG's metadata.

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), lvmraid(7), lvmthin(7), lvmcache(7)