Date: Fri, 15 Apr 2011 19:06:40 -0500 From: Daniel Mayfield <dan@3geeks.org> To: Jeremy Chadwick <freebsd@jdc.parodius.com> Cc: freebsd-fs@freebsd.org Subject: Re: question on extended attributes Message-ID: <337FAD9E-6973-4CA4-96E2-4A24F69916AF@3geeks.org> In-Reply-To: <20110416000112.GA13487@icarus.home.lan> References: <D8E990E6-4967-4182-858F-F735650B2B76@3geeks.org> <20110416000112.GA13487@icarus.home.lan>
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On Apr 15, 2011, at 7:01 PM, Jeremy Chadwick wrote:
> On Fri, Apr 15, 2011 at 05:01:58PM -0500, Daniel Mayfield wrote:
>> I'm trying to use rsync and rsnapshot to make backup copies of my Mac =
to my freebsd 8.2 server . When I specify syncing extended attributes =
as well, I get an error for any file on the Mac that has a resource =
fork:=20
>>=20
>> rsync: rsync_xal_set: =
lsetxattr("Documents/<foo>","com.apple.ResourceFork") failed: No space =
left on device (28)
>>=20
>> I'd love to work on fixing this, but I'm seeing a bunch of references =
to UFS1 vs UFS2 in the extended attribute readme. But I'm not sure what =
I'm actually using (I took the default when it setup, which says =
ufs2+softdep, but mount simply says ufs).
>>=20
>> Can someone help point me in the right direction?
>=20
> Sorry if this sounds harsh or rude, but can I ask you what exactly
> extended filesystem attributes (usually ACLs) have to do with file
> resource forks on OS X? AFAIK they have nothing to do with one =
another.
OS X stores resource forks (and a few other things) as extended =
attributes on HFS+ filesystems these days. Or at least that's how it =
presents the HFS+ concept of a resource fork to unix programs like rsync =
that understand extended attributes.
> Also, you're aware of how Apple solved the resource fork problem when
> archiving something in a .zip file, right? The "_MACOSX" directory
> within the .zip.
This is sub optimal as I'd like to be able to inspect/modify the "data =
fork" of the file on the freebsd box too. For example, editing files =
while I'm ssh'd into the freebsd machine remotely, but still preserving =
the icon when it gets copied back. If I were to do as you described, I =
may as well setup netatalk and build a time machine style backup device. =
That isn't my goal.
daniel
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