Volker Armin Hemmann <volkerar...@googlemail.com> wrote:
> On Mittwoch 22 April 2009, Joerg Schilling wrote:
> > Thomas Chef <thomas.c...@gmail.com> wrote:
> > > Now that my gentoo system is up and running the applications that I want
> > > to use, how do I make a reliable backup ?
> > >
> > > Can I follow the guide on:
> > > http://en.gentoo-wiki.com/wiki/Backup_to_DVD
> > >
> > > Is that a proven/working method ?
> >
> > Be very careful as GNU tar is buggy and does not always like to read
> > continuation volumes from multi volume archives. This is extremely nasty as
> > you will realize the problem once it is too late.
>
> oh really? it works very well with my tapelib. And yes, restore works.
There is a 1-5% chance that GNU tar does fail this way, did you try to restore
enough GNU tar multi-volume archives? Did you restore more than 100
multi-volume archives?
GNU tar uses a method for multi-volume archives that cannot support all
possible cases. Star uses a mwthod that is granted to always work reliably.
> > GNU tar also does not support to archive all meta data from Linux.
>
> which is only relevant if you use acls, isn't it?
ACLs, xattrs and others.
> > I recommend to use star. Star implementes reliable multi volume support and
> > archives all meta data that is available on Linux. Only a reliable multi
> > volume support inside the archiver allows you to read back archives
> > starting past volume#1.
>
> can star decompress files?
Are you kidding?
Jörg
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