pvcreate --- initialize a disk or partition for use by LVM


   pvcreate   [--commandprofile   ProfileName]   [-d|--debug]  [-h|--help]
   [-t|--test]  [-v|--verbose]   [--version]   [-f[f]|--force   [--force]]
   [-y|--yes]       [--labelsector]       [--bootloaderareasize      size]
   [-M|--metadatatype    type]    [--[pv]metadatacopies    NumberOfCopies]
   [--metadatasize   size]   [--metadataignore   {y|n}]   [--dataalignment
   alignment]  [--dataalignmentoffset   alignment_offset]   [--restorefile
   file]       [--norestorefile]       [--reportformat       {basic|json}]
   [--setphysicalvolumesize  size]  [-u|--uuid  uuid]  [-Z|--zero   {y|n}]
   PhysicalVolume [PhysicalVolume...]


   pvcreate initializes PhysicalVolume for later use by the Logical Volume
   Manager (LVM).  Each PhysicalVolume can  be  a  disk  partition,  whole
   disk,  meta  device,  or  loopback  file.  For DOS disk partitions, the
   partition id should be set to 0x8e  using  fdisk(8),  cfdisk(8),  or  a
   equivalent.    For    GUID   Partition   Table   (GPT),   the   id   is
   E6D6D379-F507-44C2-A23C-238F2A3DF928. For whole disk devices  only  the
   partition table must be erased, which will effectively destroy all data
   on that disk.  This can be done by zeroing the first sector with:

   dd if=/dev/zero of=PhysicalVolume bs=512 count=1

   Continue  with  vgcreate(8)  to  create   a   new   volume   group   on
   PhysicalVolume,  or  vgextend(8)  to  add PhysicalVolume to an existing
   volume group.


   See lvm(8) for common options.

   -f, --force
          Force the  creation  without  any  confirmation.   You  can  not
          recreate  (reinitialize)  a  physical  volume  belonging  to  an
          existing volume group.  In an emergency you  can  override  this
          behaviour with -ff.

   -u, --uuid uuid
          Specify   the   uuid  for  the  device.   Without  this  option,
          pvcreate(8) generates a  random  uuid.   All  of  your  physical
          volumes  must  have  unique  uuids.  You need to use this option
          before restoring a backup of LVM  metadata  onto  a  replacement
          device  - see vgcfgrestore(8).  As such, use of --restorefile is
          compulsory unless the --norestorefile is used.

   -y, --yes
          Answer yes to all questions.

   -Z, --zero {y|n}
          Whether or not the first 4 sectors (2048 bytes)  of  the  device
          should be wiped.  If this option is not given, the default is to
          wipe these sectors unless either or both of the --restorefile or
          --uuid options were specified.


   LVM2  introduces  a  new format for storing metadata on disk.  This new
   format is more efficient and resilient than  the  format  the  original
   version  of  LVM  used and offers the advanced user greater flexibility
   and control.

   The new format may be selected on the  command  line  with  -M2  or  by
   setting  format  =  "lvm2"  in the global section of lvm.conf(5).  Each
   physical volume in the same volume group must use the same format,  but
   different  volume  groups  on  a  machine  may  use  different  formats
   simultaneously: the tools can handle both formats.  Additional  formats
   can be added as shared libraries.

   Additional  tools  for manipulating the locations and sizes of metadata
   areas will be written in due course.  Use the verbose/debug options  on
   the tools to see where the metadata areas are placed.

   --metadatasize size
          The  approximate  amount  of  space  to  be  set  aside for each
          metadata area.  (The size you specify may get rounded.)

   --dataalignment alignment
          Align the start of the data to a multiple of this  number.   You
          should  also  specify  an  appropriate  PhysicalExtentSize  when
          creating the Volume Group with vgcreate.

          To see the location of the first Physical Extent of an  existing
          Physical Volume use pvs -o +pe_start .  It will be a multiple of
          the requested alignment.  In  addition  it  may  be  shifted  by
          alignment_offset    from   data_alignment_offset_detection   (if
          enabled in lvm.conf(5)) or --dataalignmentoffset.

   --dataalignmentoffset alignment_offset
          Shift  the  start  of  the  data   area   by   this   additional

   --[pv]metadatacopies NumberOfCopies
          The number of metadata areas to set aside on each PV.  Currently
          this can be 0, 1 or 2.  If set to 2, two copies  of  the  volume
          group  metadata  are  held on the PV, one at the front of the PV
          and one at the end.  If set to 1 (the default), one copy is kept
          at  the front of the PV (starting in the 5th sector).  If set to
          0, no copies are kept on this PV - you might wish  to  use  this
          with  VGs  containing  large numbers of PVs.  But if you do this
          and then later use vgsplit(8) you must ensure that  each  VG  is
          still  going to have a suitable number of copies of the metadata
          after the split!

   --metadataignore {y|n}
          Ignore or un-ignore metadata areas on this physical volume.  The
          default  is "n".  This setting can be changed with pvchange.  If
          metadata areas on a physical volume are ignored,  LVM  will  not
          store  metadata  in  the metadata areas present on this Physical
          Volume.  Metadata areas cannot  be  created  or  extended  after
          Logical Volumes have been allocated on the device. If you do not
          want to store metadata on this device, it is still  wise  always
          to  allocate  a  metadata area in case you need it in the future
          and to use this option to instruct LVM2 to ignore it.

   --restorefile file
          In conjunction with --uuid, this extracts the location and  size
          of  the  data  on the PV from the file (produced by vgcfgbackup)
          and ensures that the  metadata  that  the  program  produces  is
          consistent  with  the  contents  of  the  file i.e. the physical
          extents will be in the same place and not get overwritten by new
          metadata.   This  provides  a  mechanism to upgrade the metadata
          format or to add/remove metadata areas. Use with care. See  also

          In  conjunction  with --uuid, this allows a uuid to be specified
          without  also  requiring  that  a  backup  of  the  metadata  be

   --labelsector sector
          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.

   --bootloaderareasize size
          Create a separate bootloader area of specified size besides PV's
          data  area.  The bootloader area is an area of reserved space on
          the PV from which LVM2 will not allocate any  extents  and  it's
          kept untouched. This is primarily aimed for use with bootloaders
          to  embed  their  own  data  or  metadata.   The  start  of  the
          bootloader  area is always aligned, see also --dataalignment and
          --dataalignmentoffset. The bootloader area size  may  eventually
          end  up increased due to the alignment, but it's never less than
          the size that is requested. To see the bootloader area start and
          size    of    an   existing   Physical   Volume   use   pvs   -o

   --setphysicalvolumesize size
          Overrides the automatically-detected size of the PV.   Use  with


   Initialize  partition  #4  on  the third SCSI disk and the entire fifth
   SCSI disk for later use by LVM:

   pvcreate /dev/sdc4 /dev/sde

   If the 2nd SCSI disk is  a  4KiB  sector  drive  that  compensates  for
   windows partitioning (sector 7 is the lowest aligned logical block, the
   4KiB sectors start at LBA -1, and consequently sector 63 is aligned  on
   a 4KiB boundary) manually account for this when initializing for use by

   pvcreate --dataalignmentoffset 7s /dev/sdb


   lvm.conf(5), lvm(8), vgcreate(8), vgextend(8), lvcreate(8),  cfdisk(8),
   fdisk(8), losetup(8), mdadm(8), vgcfgrestore(8), vgconvert(8)


Personal Opportunity - Free software gives you access to billions of dollars of software at no cost. Use this software for your business, personal use or to develop a profitable skill. Access to source code provides access to a level of capabilities/information that companies protect though copyrights. Open source is a core component of the Internet and it is available to you. Leverage the billions of dollars in resources and capabilities to build a career, establish a business or change the world. The potential is endless for those who understand the opportunity.

Business Opportunity - Goldman Sachs, IBM and countless large corporations are leveraging open source to reduce costs, develop products and increase their bottom lines. Learn what these companies know about open source and how open source can give you the advantage.

Free Software

Free Software provides computer programs and capabilities at no cost but more importantly, it provides the freedom to run, edit, contribute to, and share the software. The importance of free software is a matter of access, not price. Software at no cost is a benefit but ownership rights to the software and source code is far more significant.

Free Office Software - The Libre Office suite provides top desktop productivity tools for free. This includes, a word processor, spreadsheet, presentation engine, drawing and flowcharting, database and math applications. Libre Office is available for Linux or Windows.

Free Books

The Free Books Library is a collection of thousands of the most popular public domain books in an online readable format. The collection includes great classical literature and more recent works where the U.S. copyright has expired. These books are yours to read and use without restrictions.

Source Code - Want to change a program or know how it works? Open Source provides the source code for its programs so that anyone can use, modify or learn how to write those programs themselves. Visit the GNU source code repositories to download the source.


Study at Harvard, Stanford or MIT - Open edX provides free online courses from Harvard, MIT, Columbia, UC Berkeley and other top Universities. Hundreds of courses for almost all major subjects and course levels. Open edx also offers some paid courses and selected certifications.

Linux Manual Pages - A man or manual page is a form of software documentation found on Linux/Unix operating systems. Topics covered include computer programs (including library and system calls), formal standards and conventions, and even abstract concepts.