partclone - The utility for clone and restore a partition.

Yu-ChinTsai <thomas@clonezilla.org>

       Report bugs to thomas@clonezilla.org or http://partclone.org.

       You can get support at http://partclone.org

       Copyright © 2007 Yu-Chin Tsai

       This manual page was written for the Debian system (and may be used by others).

       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General
       Public License, Version 2 or (at your option) any later version published by the Free Software
       Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in
       /usr/share/common-licenses/GPL.

partclone                                          07/11/2025                                       PARTCLONE(8)

partclone.[fstype] is a part of Partclone project. Partclone provide utilities to backup used blocks and
       design for higher compatibility of the file system by using existing library, e.g. e2fslibs is used to
       read the used block of ext2 partition.

       Partclone supported file system include btrfs, ext2, ext3, ext4, reiserfs, reiser4, xfs and jfs for
       LINUX. Also support some non-linux operation system, ex: NTFS, FAT and EXFAT (for Windows), HFS plus
       (APPLE MAC OS), UFS2 (FreeBSD), VMFS (VMWare Vsphere) and MINIX (MINIX3).

       All partclone utils could be run like partclone.[fstype] is very smiliar fsck or mkfs. For example, for
       backup/restore hfsplus, just run partclone.hfsp

                  File System                 partclone.[fstype]

                  btrfs                       partclone.btrfs
                  ext2, ext3, ext4            partclone.[ext2 | ext3 | ext4]
                  reiserfs 3.5                partclone.reiserfs
                  reiser 4                    partclone.reiser4
                  xfs                         partclone.xfs
                  ufs | ufs2                  partclone.ufs
                  jfs                         partclone.jfs
                  hfs plusfs                  partclone.[hfs+ | hfsplus]
                  vmfs                        partclone.[vmfs | vmfs5]
                  ntfs                        partclone.ntfs
                  fat12, fat16, fat32         partclone.[fat12 | fat16 | fat32]
                  exfat                       partclone.exfat
                  minix                       partclone.minix
                  f2fs                        partclone.f2fs
                  nilfs2                      partclone.nilfs2
                  apfs                        partclone.apfs
                  others (Not Supported FS)   partclone.imager

       The following diagnostics may be issued on stderr:

       partclone provides some return codes, that can be used in scripts:
       CodeDiagnostic0      Program exited successfully.
       1      Clone or Restore seem failed.

            clone /dev/hda1 to hda1.img and display debug information.
              partclone.ext3 -c -d -s /dev/hda1 -o hda1.img

            restore /dev/hda1 from hda1.img and display debug information.
              partclone.extfs -r -d -s hda1.img -o /dev/hda1

            restore image from clonezilla (split, gzip,) with stdin source
              cat sda1.ext3-ptcl-img.gz.a* | gunzip -c | partclone.ext3 -d -r -s - -o /dev/sda1

       /var/log/partclone.log
           The log file of partclone

       partclone - The utility for clone and restore a partition.

       The program follows the usual GNU command line syntax, with long options starting with two dashes (`-').
       A summary of options is included below.

       -sFILE, --sourceFILE
           Source FILE. The FILE could be a image file (made by partclone) or device depend on your action.
           Normally, backup source is device, restore source is image file.

           Receving data from pipe line is supported ONLY for restoring, just ignore -s option or use '-' means
           receive data from stdin.

       -oFILE, --outputFILE
           Output FILE. The FILE could be a image file (partclone will generate) or device depend on your
           action. Normally, backup output to image file and restore output to device.

           Sending data to pipe line is also supported ONLY for back-up, just ignore -o option or use '-' means
           send data to stdout.

       -OFILE, --overwriteFILE
           Overwrite FILE, overwriting if exists.

       -WFILE, --restore_raw_fileFILE
           create special raw file for loop device.

       -c, --clone
           Save partition to the special image format.

       -r, --restore
           Restore partition from the special image format.

       -b, --dev-to-dev
           Local device to device copy on-the-fly, source and output both are device.

       -D, --domain
           Create GNU Ddrescue domain log file from source device. This is a human readable file in which +
           marks used block areas and ? marks free areas.

       --offset_domain=X
           Add X (in bytes) to all positions reported in the domain log file

       --restore_raw_file
           Creating special raw file for loop device.

       -LFILE, --logfileFILE
           put special path to record partclone log information. (default /var/log/partclone.log)

       -R, --rescue
           Continue after disk read errors.

       -C, --no_check
           Don't check device size and free space.

       -N, --ncurses
           Using Ncurses Text User Interface.

       -I, --ignore_fschk
           Ignore filesystem check.

       -i, --ignore_crc
           Ignore crc check error.

       -F, --force
           Force progress.

       -fsec, --UI-freshsec
           put special second to different interval.

       -zsize, --buffer_sizesize
           Read/write buffer size (default: 1048576)

       -q, --quiet
           Disable progress message.

       -dlevel, --debuglevel
           Set the debug level [1|2|3]

       -x, --compresscmdCMD
           Start CMD as an output pipe to compress the cloned image

       -aX, --checksum-mode=X
           Checksum formula to use to add error detection

           where X:

           0: No checksum (no slowdown, smallest image)

           1: CRC32 (Fast to compute, basic detection)

       -kX, --blocks-per-checksum=X
           Write one checksum for every X blocks

       -w, --skip_write_error
           Continue restore while write errors

       --write-direct-io
           Writing data to TARGET partition without cache

       --read-direct-io
           Reading data from SOURCE partition without cache

       -B, --no_block_detail
           Show progress message without block detail

       --binary-prefix
           Show progress with bit size (default is MB, GB...)

       --prog-second
           Show progress in seconds (default is minute)

       -E, --offset=X
           Add offset X (bytes) to OUTPUT

       -T, --btfiles
           Restore block as file for ClonezillaBT.

       -t, --btfiles_torrent
           Restore block as file for ClonezillaBT but only generate torrent.

       -n, --noteNOTE
           Display Message Note (128 words).

       -h, --help
           Show summary of options.

       -v, --version
           Show version of program.

partclone(8), partclone.chkimg(8), partclone.restore(8), partclone.dd(8), partclone.info(8)

partclone.[fstype] {[-c | --clone] [-r | --restore] [-b | --dev-to-dev]} {[-s | --source] source}
                          {[[-o | --output] [-O | --overwrite]] target}
                          [[-dX | --debug=X] [--restore_raw_file] [-z | --buffer_size] [-N | --ncurses] [-q | --quiet] [-f | --UI-fresh] [-F | --force] [-I | --ignore_fschk] [-i | --ignore_crc] [-C | --nocheck] [-R | --rescue] [-L | --logfile] logfile [-R | --rescue] [-L | --logfile] logfile [-X | --compresscmd] [-D | --domain] [--offset_domain] [-aX | --checksum-mode=X] [-kX | --blocks-per-checksum=X] [-K | --no-reseed] [-w | --skip_write_error] [-E | --offset=X] [-T | --btfiles] [-t | --btfiles_torrent] [-n | --note] [-B | --no_block_detail] [--binary-prefix] [--prog-second] [--write-direct-io] [--read-direct-io]]