VGCONVERT(8)   (LVM TOOLS 2.03.11(2) (2021-01-08))   VGCONVERT(8)

     NAME
          vgconvert - Change volume group metadata format

     SYNOPSIS
          vgconvert position_args
              [ option_args ]

     DESCRIPTION
          vgconvert is no longer a part of LVM.  It was removed along
          with support for the LVM1 format.  Use an older version of
          LVM to convert VGs from the LVM1 format to LVM2.

     USAGE
          vgconvert VG ...
              [ -f|--force ]
              [ -M|--metadatatype lvm2 ]
              [    --labelsector Number ]
              [    --bootloaderareasize Size[m|UNIT] ]
              [    --pvmetadatacopies 0|1|2 ]
              [    --metadatasize Size[m|UNIT] ]
              [    --reportformat basic|json ]
              [ COMMON_OPTIONS ]
          Common options for lvm:
              [ -d|--debug ]
              [ -h|--help ]
              [ -q|--quiet ]
              [ -t|--test ]
              [ -v|--verbose ]
              [ -y|--yes ]
              [    --commandprofile String ]
              [    --config String ]
              [    --driverloaded y|n ]
              [    --lockopt String ]
              [    --longhelp ]
              [    --nolocking ]
              [    --profile String ]
              [    --version ]

     OPTIONS
          --bootloaderareasize Size[m|UNIT]
               Reserve space for the bootloader between the LVM
               metadata area and the first PE.  The bootloader area is
               reserved for bootloaders to embed their own data or
               metadata; LVM will not use it.  The bootloader area
               begins where the first PE would otherwise be located.
               The first PE is moved out by the size of the bootloader
               area, and then moved out further if necessary to match
               the data alignment.  The start of the bootloader area
               is always aligned, see also --dataalignment and

     Page 1                    Red Hat, Inc.         (printed 5/24/22)

     VGCONVERT(8)   (LVM TOOLS 2.03.11(2) (2021-01-08))   VGCONVERT(8)

               --dataalignmentoffset. The bootloader area may be
               larger than requested due to the alignment, but it's
               never less than the requested size.  To see the
               bootloader area start and size of an existing PV use
               pvs -o +pv_ba_start,pv_ba_size.

          --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 settings.  The String arg uses the same format
               as lvm.conf, 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).

          --driverloaded y|n
               If set to no, the command will not attempt to use
               device-mapper.  For testing and debugging.

          -f|--force ...
               Override various checks, confirmations and protections.
               Use with extreme caution.

          -h|--help
               Display help text.

          --labelsector Number
               By default the PV is labelled with an LVM2 identifier
               in its second sector (sector 1). This lets you use a
               different sector near the start of the disk (between 0
               and 3 inclusive - see LABEL_SCAN_SECTORS in the
               source). Use with care.

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

          --longhelp
               Display long help text.

          --metadatasize Size[m|UNIT]
               The approximate amount of space used for each VG
               metadata area.  The size may be rounded.

          -M|--metadatatype lvm2
               Specifies the type of on-disk metadata to use.  lvm2

     Page 2                    Red Hat, Inc.         (printed 5/24/22)

     VGCONVERT(8)   (LVM TOOLS 2.03.11(2) (2021-01-08))   VGCONVERT(8)

               (or just 2) is the current, standard format.  lvm1 (or
               just 1) is no longer used.

          --nolocking
               Disable locking.

          --profile String
               An alias for --commandprofile or --metadataprofile,
               depending on the command.

          --pvmetadatacopies 0|1|2
               The number of metadata areas to set aside on a PV for
               storing VG metadata.  When 2, one copy of the VG
               metadata is stored at the front of the PV and a second
               copy is stored at the end.  When 1, one copy of the VG
               metadata is stored at the front of the PV.  When 0, no
               copies of the VG metadata are stored on the given PV.
               This may be useful in VGs containing many PVs (this
               places limitations on the ability to use vgsplit
               later.)

          -q|--quiet ...
               Suppress output and log messages. Overrides --debug and
               --verbose.  Repeat once to also suppress any prompts
               with answer 'no'.

          --reportformat basic|json
               Overrides current output format for reports which is
               defined globally by the report/output_format setting in
               lvm.conf.  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. 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

     Page 3                    Red Hat, Inc.         (printed 5/24/22)

     VGCONVERT(8)   (LVM TOOLS 2.03.11(2) (2021-01-08))   VGCONVERT(8)

               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: bBsSkKmMgGtTpPeE.  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)

          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)    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) lvm2-activation-generator(8)
          blkdeactivate(8) lvmdump(8)

          dmeventd(8)    lvmpolld(8)     lvmlockd(8)     lvmlockctl(8)
          cmirrord(8) lvmdbusd(8)

          lvmsystemid(7)    lvmreport(7)     lvmraid(7)     lvmthin(7)

     Page 4                    Red Hat, Inc.         (printed 5/24/22)

     VGCONVERT(8)   (LVM TOOLS 2.03.11(2) (2021-01-08))   VGCONVERT(8)

          lvmcache(7)

     Page 5                    Red Hat, Inc.         (printed 5/24/22)