[rescue] Oracle making just a little harder to keep old machines in use
alaric at metrocast.net
Mon May 10 07:14:48 CDT 2010
On 05/10/10 08:00, Rich Kulawiec wrote:
> On Sat, May 08, 2010 at 11:05:50AM -0400, Patrick Finnegan wrote:
>> Why won't (GNU) tar work? It does everything that you say you are
> Well, yes and no.
> Tar doesn't have code to cope with filesystems that are changing
> as they're being read.
What does, without taking a snapshot?
> It doesn't know how to split its output across multiple volumes.
I beg to differ:
create/list/extract multi-volume archive
keep track of which volume of a multi-volume archive its
in FILE; used with --multi-volume
> Tar's "catalog", if you will, is spread throughout the archive and
> not at the beginning. Whether this is good or bad or indifferent
> depends, but I think for backups (as opposed to archives) it's not
> a good thing.
This is indeed a significant weakness of tar, and it's why when I was
using a backup system built from commin userspace tools, I used cpio
(well, actually, afio, which is file-compatible but better) rather than tar.
Phil Stracchino, CDK#2 DoD#299792458 ICBM: 43.5607, -71.355
alaric at caerllewys.net alaric at metrocast.net phil at co.ordinate.org
Renaissance Man, Unix ronin, Perl hacker, Free Stater
It's not the years, it's the mileage.
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