mirror of https://github.com/borgbackup/borg.git
131 lines
3.7 KiB
Groff
131 lines
3.7 KiB
Groff
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.TH "BORG-UPGRADE" 1 "2022-06-25" "" "borg backup tool"
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.SH NAME
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borg-upgrade \- upgrade a repository from a previous version
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.SH SYNOPSIS
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.sp
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borg [common options] upgrade [options]
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.SH DESCRIPTION
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.sp
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Upgrade an existing, local Borg repository.
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.SS When you do not need borg upgrade
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.sp
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Not every change requires that you run \fBborg upgrade\fP\&.
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.sp
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You do \fBnot\fP need to run it when:
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.INDENT 0.0
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.IP \(bu 2
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moving your repository to a different place
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.IP \(bu 2
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upgrading to another point release (like 1.0.x to 1.0.y),
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except when noted otherwise in the changelog
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.IP \(bu 2
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upgrading from 1.0.x to 1.1.x,
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except when noted otherwise in the changelog
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.UNINDENT
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.SS Borg 1.x.y upgrades
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.sp
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Use \fBborg upgrade \-\-tam REPO\fP to require manifest authentication
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introduced with Borg 1.0.9 to address security issues. This means
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that modifying the repository after doing this with a version prior
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to 1.0.9 will raise a validation error, so perform this upgrade
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only after updating all clients using the repository to 1.0.9 or newer.
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.sp
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This upgrade should be done on each client for safety reasons.
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.sp
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If a repository is accidentally modified with a pre\-1.0.9 client after
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this upgrade, use \fBborg upgrade \-\-tam \-\-force REPO\fP to remedy it.
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.sp
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If you routinely do this you might not want to enable this upgrade
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(which will leave you exposed to the security issue). You can
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reverse the upgrade by issuing \fBborg upgrade \-\-disable\-tam REPO\fP\&.
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.sp
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See
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\fI\%https://borgbackup.readthedocs.io/en/stable/changes.html#pre\-1\-0\-9\-manifest\-spoofing\-vulnerability\fP
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for details.
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.SS Borg 0.xx to Borg 1.x
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.sp
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This currently supports converting Borg 0.xx to 1.0.
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.sp
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Currently, only LOCAL repositories can be upgraded (issue #465).
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.sp
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Please note that \fBborg create\fP (since 1.0.0) uses bigger chunks by
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default than old borg did, so the new chunks won\(aqt deduplicate
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with the old chunks in the upgraded repository.
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See \fB\-\-chunker\-params\fP option of \fBborg create\fP and \fBborg recreate\fP\&.
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.SH OPTIONS
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.sp
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See \fIborg\-common(1)\fP for common options of Borg commands.
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.SS optional arguments
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.INDENT 0.0
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.TP
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.B \-n\fP,\fB \-\-dry\-run
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do not change repository
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.TP
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.B \-\-inplace
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rewrite repository in place, with no chance of going back to older versions of the repository.
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.TP
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.B \-\-force
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Force upgrade
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.TP
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.B \-\-tam
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Enable manifest authentication (in key and cache) (Borg 1.0.9 and later).
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.TP
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.B \-\-disable\-tam
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Disable manifest authentication (in key and cache).
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.UNINDENT
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.SH EXAMPLES
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.INDENT 0.0
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.INDENT 3.5
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.sp
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.nf
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.ft C
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# Upgrade the borg repository to the most recent version.
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$ borg upgrade \-v /path/to/repo
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making a hardlink copy in /path/to/repo.before\-upgrade\-2016\-02\-15\-20:51:55
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opening attic repository with borg and converting
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no key file found for repository
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converting repo index /path/to/repo/index.0
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converting 1 segments...
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converting borg 0.xx to borg current
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no key file found for repository
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.ft P
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.fi
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.UNINDENT
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.UNINDENT
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.SH SEE ALSO
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.sp
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\fIborg\-common(1)\fP
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.SH AUTHOR
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The Borg Collective
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.\" Generated by docutils manpage writer.
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