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Re: SELinux attrs
2008-07-28 13:55:46
Am 28.07.08 15:08 schrieb(en) Nickolas Gray:
New to list, looking for a good solution to backing up SELinux
systems with MLS policues
The reference in the Amanda documentation regarding SELinux xattrs is
a rather cryptic one-liner
The problem is that amanda relies upon GNU tar which is not able to
back up extended attributes, including ACL's as well as SELinux ones.
Star <http://developer.berlios.de/projects/star> is an alternative to
GNU tar which *does* include perfect (afaict) extended attribute
support using the "exustar" format, but it's options are somewhat
different from gtar's. In particular, iirc it lacks gtar's
'--ignore-failed-read' option which is important for amanda.
A while ago I started to write a simple wrapper script for star (you
have to re-build amanda, as the "tar" application it calls is
hard-coded in the executable), but did not yet succeed. I probably
have to look deeper into the sources to see which options might be used
with gtar, so the proper star replacements are mapped. Of course, it
would also make sense to include a "star" backup mode into amanda, as
the extended attributes problem ist rather common. If anyone else did
that work already, I would highly appreciate any pointers!
Sorry for the "mixed" news,
Albrecht.
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