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* doc/snapshot.texi: Clarify the use of nfs field in 0 and 1 formats.
Give more precise information about which versions of tar used each
format.
This commit is contained in:
Nathan Stratton Treadway
2011-09-19 16:12:04 +03:00
committed by Sergey Poznyakoff
parent 51b272f572
commit a6cc856fbe
1 changed files with 10 additions and 7 deletions
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doc/snapshot.texi
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@@ -11,11 +11,11 @@ used to determine which files were modified since the last backup.
@GNUTAR{} version @value{VERSION} supports three snapshot file @GNUTAR{} version @value{VERSION} supports three snapshot file
formats. The first format, called @dfn{format 0}, is the one used by formats. The first format, called @dfn{format 0}, is the one used by
@GNUTAR{} versions up to 1.15.1. The second format, called @dfn{format @GNUTAR{} versions up to and including 1.15.1. The second format, called
1} is an extended version of this format, that contains more metadata @dfn{format 1} is an extended version of this format, that contains more
and allows for further extensions. It was used by version metadata and allows for further extensions. It was used by alpha release
1.15.1. Starting from version 1.16 and up to @value{VERSION}, the version 1.15.90. For alpha version 1.15.91 and stable releases
@dfn{format 2} is used. version 1.16 up through @value{VERSION}, the @dfn{format 2} is used.
@GNUTAR{} is able to read all three formats, but will create @GNUTAR{} is able to read all three formats, but will create
snapshots only in format 2. snapshots only in format 2.
@@ -33,7 +33,7 @@ metadata descriptions, one per line. Each description has the
following format: following format:
@smallexample @smallexample
@var{nfs}@var{dev} @var{inode} @var{name} [@var{nfs}]@var{dev} @var{inode} @var{name}
@end smallexample @end smallexample
@noindent @noindent
@@ -42,7 +42,10 @@ where:
@table @var @table @var
@item nfs @item nfs
A single plus character (@samp{+}), if this directory is located on A single plus character (@samp{+}), if this directory is located on
an @acronym{NFS}-mounted partition, or a single space otherwise; an @acronym{NFS}-mounted partition, otherwise empty.
(That is, for non-NFS directories, the first character on the
description line contains the start of the @var{dev} field.)
@item dev @item dev
Device number of the directory; Device number of the directory;