[geeks] Cheap/reliable backup?

Michael Parson mparson at bl.org
Tue Dec 3 11:48:59 CST 2013


On Tue, 3 Dec 2013, Mouse wrote:

>>> If I could figure out a way to dump a disk onto Blue Rays I would
>>> consider it.  Making a bunch of right-sized tarballs to fit most
>>> media is too problematic.
>
>> http://unix.stackexchange.com/questions/21373/can-i-automate-tars-multi-volume-feature
>
>> The TL;DR:
>
>> tar can do multi-volume backups, originally designed for tape.  You
>> can specify the length of the tape (output file size) and [...]
>
> Um.  "tar" can't do that.  Some implementations of tar can, perhaps.
> (tar is not a single thing; there are many tars and they vary widely in
> their capabilities, and that is not part of the core they (almost?) all
> share.)

You're right.  That page, and my comments, were about gnu-tar, which
does have the ability to create tar files that won't properly un-tar
with non-gnu versions of tar.

-- 
Michael Parson
Austin, TX
KF5LGQ


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