[CentOS] reading old dump backups from 2009
Pete Biggs
pete at biggs.org.uk
Sat Nov 3 10:26:35 UTC 2018
>
> restore tvf u1_l0_04-29-09_md1.dump Verify tape and initialize maps
> Input is from a local file/pipe
> Checksum error 20311110402, inode 0 file (null)
> restore: Tape is not a dump tape
what does 'file' think the file is - i.e. what does
file u1_l0_04-29-09_md1.dump
say?
>
>
> Here's a log file from when the backup was done back in 2009:
>
> DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009
> DUMP: Dumping /dev/md1 (/u1) to u1_l0_04-29-09_md1.dump
> DUMP: Label: /u1
> DUMP: Writing 10 Kilobyte records
> DUMP: Compressing output at compression level 2 (bzlib)
> DUMP: finished in 23704 seconds, throughput 4075 kBytes/sec
> DUMP: Date of this level 0 dump: Wed Apr 29 09:24:36 2009
> DUMP: Date this dump completed: Wed Apr 29 16:00:09 2009
> DUMP: Average transfer rate: 2146 kB/s
> DUMP: Wrote 96607840kB uncompressed, 50878096kB compressed, 1.899:1
> DUMP: DUMP IS DONE
The dump is compressed. What was the command line you used to create
the dump file?
Have you tried using
restore tzvf u1_l0_04-29-09_md1.dump
>
> Have there been any changes to the format of dump files and if so, is
> there a version available that can read this older backup?
I don't think dump has changed anything in 20 years or so! And I
certainly can't see it changing such that it can't read old files -
that is, sort of, it's raison d'etre.
P.
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