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Clarify that the -r and -R options can be used only to create level 0 dumps.

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Suggested by: phk
MFC after:    3 days
This commit is contained in:
Kirk McKusick 2019-06-14 06:10:15 +00:00
parent aa4a1d3a55
commit e924cb6ff9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=349032
1 changed files with 13 additions and 1 deletions
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14
sbin/dump/dump.8
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@ -29,7 +29,7 @@
.\" @(#)dump.8 8.3 (Berkeley) 5/1/95 .\" @(#)dump.8 8.3 (Berkeley) 5/1/95
.\" $FreeBSD$ .\" $FreeBSD$
.\" .\"
.Dd June 11, 2018 .Dd June 13, 2019
.Dt DUMP 8 .Dt DUMP 8
.Os .Os
.Sh NAME .Sh NAME
@ -266,6 +266,12 @@ used to update a remote copy of a level 0 dump,
since the date changes for each dump. since the date changes for each dump.
This option sets both dates to the epoch, permitting This option sets both dates to the epoch, permitting
rsync to be much more efficient when transferring a dump file. rsync to be much more efficient when transferring a dump file.
The
.Fl r
option can be used only to create level 0 dumps.
A dump using the
.Fl r
option cannot be used as the basis for a later incremental dump.
.It Fl R .It Fl R
Be even more rsync-friendly. Be even more rsync-friendly.
This option disables the storage of the actual inode access time This option disables the storage of the actual inode access time
@ -277,6 +283,12 @@ The
.Fl R .Fl R
option also sets option also sets
.Fl r . .Fl r .
The
.Fl R
option can be used only to create level 0 dumps.
A dump using the
.Fl R
option cannot be used as the basis for a later incremental dump.
.It Fl S .It Fl S
Display an estimate of the backup size and the number of Display an estimate of the backup size and the number of
tapes required, and exit without actually performing the dump. tapes required, and exit without actually performing the dump.