Re: [rdiff-backup-users] Proposal for handling user/group ownership and ACLs

[Arkadiusz Miskiewicz]

On Sunday 31 of August 2003 11:50, Ben Escoto wrote:
> For instance, suppose a file is owned by username 'foo' on machine1.
> After backing up that file to machine2, without username 'foo', who
> should own the file?  Or if a file has an ACL user:foo:rwx, what
> should the remote ACL be if the system has no user foo?  Some of the
> same problems can occur when restoring, if the users/groups have
> changed between backup and restore.
Just like in tar. By default works as userxyz but has option --numeric-owner.

> > 1.  For ownership and ACLs, normally record only user and group
> >     names, not ids.  Record ids only if user/group names are not
> >     available.
Always record both and then when restoring depend on cmd line options.

> > 2.  When mirroring or restoring, the default would be to:
> >
> >     A.  Preserve the original user and group for ownership and ACLs.
> >         If ownership preserving is impossible (because of lack of
> >         permissions or missing groups), set to current user and
> >         group.
> >
> >         If the original user/group name was not available, try to
> >         preserve the user/group id.
> >
> >         For ACLs, if a user or group is missing, just omit that
> >         particular ACL entry.
and print big warning about it.

-- 
Arkadiusz Miśkiewicz    CS at FoE, Wroclaw University of Technology
arekm.pld-linux.org AM2-6BONE, 1024/3DB19BBD, arekm(at)ircnet, PLD/Linux