BORG-IMPORT-TAR(1) borg backup tool BORG-IMPORT-TAR(1)
NAME
borg-import-tar - Create a backup archive from a tarball
SYNOPSIS
borg [common options] import-tar [options] ARCHIVE TARFILE
DESCRIPTION
This command creates a backup archive from a tarball.
When giving '-' as path, Borg will read a tar stream from standard in-
put.
By default (--tar-filter=auto) Borg will detect whether the file is
compressed based on its file extension and pipe the file through an ap-
propriate filter:
• .tar.gz or .tgz: gzip -d
• .tar.bz2 or .tbz: bzip2 -d
• .tar.xz or .txz: xz -d
• .tar.zstd or .tar.zst: zstd -d
• .tar.lz4: lz4 -d
Alternatively, a --tar-filter program may be explicitly specified. It
should read compressed data from stdin and output an uncompressed tar
stream on stdout.
Most documentation of borg create applies. Note that this command does
not support excluding files.
import-tar is a lossy conversion: BSD flags, ACLs, extended attributes
(xattrs), atime and ctime are not exported. Timestamp resolution is
limited to whole seconds, not the nanosecond resolution otherwise sup-
ported by Borg.
A --sparse option (as found in borg create) is not supported.
import-tar reads POSIX.1-1988 (ustar), POSIX.1-2001 (pax), GNU tar,
UNIX V7 tar and SunOS tar with extended attributes.
To import multiple tarballs into a single archive, they can be simply
concatenated (e.g. using "cat") into a single file, and imported with
an --ignore-zeros option to skip through the stop markers between them.
OPTIONS
See borg-common(1) for common options of Borg commands.
arguments
ARCHIVE
name of archive to create (must be also a valid directory name)
TARFILE
input tar file. "-" to read from stdin instead.
options
--tar-filter
filter program to pipe data through
-s, --stats
print statistics for the created archive
--list output verbose list of items (files, dirs, ...)
--filter STATUSCHARS
only display items with the given status characters
--json output stats as JSON (implies --stats)
--ignore-zeros
ignore zero-filled blocks in the input tarball
Archive options
--comment COMMENT
add a comment text to the archive
--timestamp TIMESTAMP
manually specify the archive creation date/time (UTC,
yyyy-mm-ddThh:mm:ss format). alternatively, give a reference
file/directory.
-c SECONDS, --checkpoint-interval SECONDS
write checkpoint every SECONDS seconds (Default: 1800)
--chunker-params PARAMS
specify the chunker parameters (ALGO, CHUNK_MIN_EXP,
CHUNK_MAX_EXP, HASH_MASK_BITS, HASH_WINDOW_SIZE). default:
buzhash,19,23,21,4095
-C COMPRESSION, --compression COMPRESSION
select compression algorithm, see the output of the "borg help
compression" command for details.
SEE ALSO
borg-common(1)
AUTHOR
The Borg Collective
2023-03-22 BORG-IMPORT-TAR(1)
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