partclone.dd8

Usage

Overview

partclone.dd is a part of Partclone project to clone unsupported file system with dd method. It will backup all block from partition. 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, jfs and zfs for LINUX. Also support some non-linux operation system, ex: NTFS and FAT (for Windows), HFS plus(APPLE MAC OS), UFS2(FreeBSD), VMFS(VMWare Vsphere).

All partclone utils could be run like partclone.xxx is very similar fsck or mkfs. For example, for backup/restore hfsplus, just run partclone.hfsp.

Options

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

-s FILE, --source FILE

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.

-o FILE, --output FILE

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.

-O FILE, --overwrite FILE

Overwrite FILE, overwriting if exists.

-W FILE, --restore_raw_file FILE

create special raw file for loop device.

--restore_raw_file

Creating special raw file for loop device.

-L FILE, --logfile FILE

put special path to record partclone log information. (default /var/log/partclone.log)

-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.

-f sec, --UI-fresh sec

put special second to different interval.

-z size, --buffer_size size

Read/write buffer size (default: 1048576)

-q, --quiet

Disable progress message.

-dlevel, --debug level

Set the debug level [1|2|3]

-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

-S, --device-size

Define device size

-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)

--json-status[=FILE]

Write progress status to FILE in JSON format, periodically refreshed, so external tools can poll the clone/restore status (default FILE: /var/log/partclone.json)

--json-fresh=N

JSON status update interval in seconds (default: 1, minimum: 1)

-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.

-h, --help

Show summary of options.

-v, --version

Show version of program.

Files

/var/log/partclone.log

Examples

 clone /dev/hda1 to hda1.dd.img and display debug information.
   partclone.dd -d -s /dev/hda1 -o hda1.dd.img
 restore /dev/hda1 from hda1.dd.img and display debug information.
   partclone.dd -d -s hda1.dd.img -o /dev/hda1

Diagnostics

The following diagnostics may be issued on stderr:

partclone.dd provides some return codes, that can be used in scripts: