Date: Fri, 20 May 2005 13:05:21 -0500 From: Ash <omniBSD@speakeasy.net> To: freebsd-questions@freebsd.org Subject: Trying to DTRT: backup UFS2 with POSIX.1e ACLs, how? Message-ID: <428E26E1.1030507@speakeasy.net>
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What is the recommended method to backup UFS2 file systems with ACLs enabled? I made the mistake of assuming (yes, yes, I'm well aware of the old adage) that dump(8) and restore(8) are compatible with POSIX.1e ACLs. I found during some testing that my assumption was either incorrect or I have not figured out how use dump/restore to properly play with ACLs. I've searched around the Interweb as well as the usual local sources (and read the man pages (dump(8), restore(8), acl(3), etc...) along with /usr/src/sys/ufs/ufs/README.acls) for an answer to creating backups and restoring UFS2 file systems with POSIX.1e ACLs enabled. I did not gain any insight from the local documentation and my Internet searches have produced conflicting results. In this ONLamp article (http://www.onlamp.com/lpt/a/4053), the author states that "FreeBSD's dump has been modified to understand UFS2 (including ACLs)." My experience has been to the contrary. I've also found newsgroup/mailing list articles stating that dump(8) does not yet understand ACLs and to use the archivers/star port. I don't have a problem installing a port to facilitate my backups (ACLs show up in snapshots, so I should be able to get a consistent backup), however I would obviously prefer to use dump(8)/restore(8), if I have the option. I'm running a relatively recently -STABLE (5.4-STABLE #0: Tue May 17 18:09:01 CDT 2005). I have been passing the following flags to dump(8)/restore(8) for testing: dump -0a -f <filename> < mount point | device name > restore -rf <filename> Any insight would be appreciated. Thanks, -Ash
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