BorgBackup
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BorgBackup (short: Borg) is a deduplicating backup program. Optionally, it supports compression and authenticated encryption.
The main goal of Borg is to provide an efficient and secure way to back up data. The data deduplication technique used makes Borg suitable for daily backups since only changes are stored. The authenticated encryption technique makes it suitable for backups to targets not fully trusted.
Installation
USE flags
USE flags for app-backup/borgbackup Deduplicating backup program with compression and authenticated encryption
debug
|
Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Backtraces |
test
|
Enable dependencies and/or preparations necessary to run tests (usually controlled by FEATURES=test but can be toggled independently) |
Emerge
root #
emerge --ask app-backup/borgbackup
Usage
Initializing a new repository
Before backups can be made, a repository must be initialized
user $
borg init --encryption=repokey /path/to/repo
Backing up directories
user $
borg create /path/to/repo::ArchiveName ~/src ~/Documents
Statistics can be output with the --stats
argument.
user $
borg create --stats /path/to/repo::ArchiveName ~/src ~/Documents
----------------------------------------------------------------------------- Archive name: ArchiveName Archive fingerprint: bd31004d58f51ea06ff735d2e5ac49376901b21d58035f8fb05dbf866566e3c2 Time (start): Tue, 2016-02-16 18:15:11 Time (end): Tue, 2016-02-16 18:15:11 Duration: 0.19 seconds Number of files: 127 ------------------------------------------------------------------------------ Original size Compressed size Deduplicated size This archive: 4.16 MB 4.17 MB 26.78 kB All archives: 8.33 MB 8.34 MB 4.19 MB Unique chunks Total chunks Chunk index: 132 261 ------------------------------------------------------------------------------
Listing archives in a repository
user $
borg list /path/to/repo
First Mon, 2016-02-15 19:14:44 Second Tue, 2016-02-16 19:15:11
Listing contents of an archive
user $
borg list /path/to/repo::ArchiveName
drwxr-xr-x user group 0 Mon, 2016-02-15 18:22:30 home/user/Documents -rw-r--r-- user group 7961 Mon, 2016-02-15 18:22:30 home/user/Documents/Important.doc ...
Restoring an archive
user $
borg extract /path/to/repo::ArchiveName
Deleting an archive
user $
borg delete /path/to/repo::ArchiveName
Compacting a repository
Compacting a repository allows borg to recover disk space by compacting segment files
user $
borg compact /path/to/repo
See also
- restic — a Go-based backup tool built simplicity, scalability, and verifiability in mind.
- dd — a utility used to copy raw data from a source into sink, where source and sink can be a block device, file, or piped input/output.
- rsnapshot — an automated backup tool based on the rsync protocol and written in Perl.