Partimage file format
.000 · .001 · partition image · introduced 2000 by Partimage Project
What is a Partimage file?
Partimage was a popular Linux partition imaging tool — the backbone of older SystemRescueCD distributions — that produced compressed partition images named like backup.000, backup.001 (split for FAT32 4 GB limits). Largely superseded by Clonezilla and partclone.
Most readers reach this page after double-clicking a .000 file and finding their operating system unsure what to do with it. The good news: Partimage is a well-understood format with mature tooling on every major platform. It is supported in one click by mainstream archivers on Windows, macOS, and Linux.
How to extract a Partimage file
Opening a .000 file is straightforward on every modern operating system. The exact steps depend on which platform you are on:
On Windows
- Locate the
.000file in File Explorer. - Right-click the file. If you have 7-Zip installed, choose 7-Zip → Extract Here. On Windows 11 the built-in extractor handles ZIP, 7z, RAR and several other formats directly through Extract All…
- If prompted, pick a destination folder and click Extract.
- The extracted files appear in a folder next to the original archive.
On macOS
- Find the
.000file in Finder. - Install The Unarchiver from the Mac App Store, or Keka for both creating and extracting.
- Right-click the file → Open With → The Unarchiver (or just double-click after Unarchiver is set as the default).
- The extracted folder appears next to the archive.
On Linux
- Use your file manager: right-click the archive → Extract Here (file-roller on GNOME, Ark on KDE).
- On the command line, run one of:
7z x archive.000 # works for almost any format
- The files appear in the current directory.
How to create a Partimage file
To pack files into a .000 archive, you typically need an archiver that supports writing this format. Not every tool can create every format — for example, only WinRAR can create real RAR files. The sidebar lists the software known to read and write Partimage.
On the command line, the canonical create command is:
# Use 7-Zip, PeaZip, or the format's reference tool to create .000 files.
If you regularly create archives at scale, a dedicated archive automation suite can wrap this command in scheduled jobs, integrity checks, and offsite replication.
Strengths
- Compressed partition images
- Multi-file split for FAT32
Weaknesses and limitations
- Mostly retired
- Filesystem support is limited
Typical use cases
- Disk imaging via SystemRescueCD
- Partition backup
Technical details
Partimage uses the gzip / bzip2 / lzo algorithm and is identified on disk by the magic byte sequence PaRtImAgE-VoLuMe. The standard MIME type is application/x-partimage. The format is an open specification and is free for any use.
Frequently asked questions
Is Partimage safe to open?
Archive files are containers — they are only as safe as what they contain. A .000 from a trusted source is fine; one received from a stranger can hold malicious executables, scripts, or files engineered to exploit bugs in your archiver. Always keep your archiver updated, and never run unknown executables that come out of an archive. A safe workflow is to extract into a sandbox and scan the contents before opening anything.
What is the maximum file size?
Modern implementations support archives in the multi-terabyte range. The practical limit is your filesystem (FAT32 caps at 4 GB; ext4, NTFS, APFS, and exFAT all comfortably handle multi-TB files).
Can I password-protect a Partimage?
Some archivers can wrap Partimage files in an encrypted container, but the format itself does not always include built-in encryption. Check your archiver's documentation.
How does Partimage compare to other formats?
See our format comparison pages such as ZIP vs 7z, ZIP vs RAR, and tar.gz vs tar.xz for side-by-side feature tables.