Samba with extended attributes

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Samba with extended attributes

Since i've updated my macbook to 10.6.3 any file that has extended attributes will not transfer via samba.

If I try and transer a single file from my macbook (10.6.3) to a samba share it will transfer to 100% then spit the message "The operation can’t be completed because you don’t have permission to access some of the items." then subsequently delete the file on the share.

If I try and transfer the file via the Terminal:
192-168-1-51:Downloads elliot$ cp /Users/elliot/Downloads/sg8demo_mac.dmg /Volumes/storage-1
cp: /Users/elliot/Downloads/sg8demo_mac.dmg: could not copy extended attributes to /Volumes/storage-1/sg8demo_mac.dmg: Operation not permitted

If I transfer the exact same file from my mac pro (10.6.2) to the same folder on the samba share it transfers without a problem.

There is no problem for either computer when transferring files from the samba share, all attributes are left intact.

If I manually delete the xattrs for the file I wish to transfer then my macbook (10.6.3) transfers it OK. As I haven't change anything on the server (which is where the samba share is) and the mac pro has been working and continues to work I can only assume the problem is when I updated to 10.6.3 on my laptop.

I've tried calling apple technical support, he didn't understand what I was talking about.

Any ideas? Thanks

Mac OS X (10.6.3)

Posted on Apr 5, 2010 12:13 AM

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Answer 1

JabLab

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Apr 11, 2010 4:04 AM in response to elliotchance

Hi - I started getting the same problem a few days ago. The problem is that I have changed a few things at once so I can't isolate the cause!

One thing I did was to change permissions so that another user of my iMac could read/write all of my documents. I think this results in ACL's being activated (not sure though). The other thing I did was to run the command "defaults write com.apple.desktopservices DSDontWriteNetworkStores true" because I was sick of the Mac leaving a hidden file called .DS_Store in every shared folder that I visited on the Samba shares.

Now I seem to have permissions problems copying local files to the Samba share and ls -le@ shows "com.apple.FinderInfo".

I'm going to try a few more things to see if I can narrow down the problem.

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Answer 2

JabLab

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Apr 11, 2010 4:19 AM in response to JabLab

I copied one of the file that was giving me grief and then typed the following command:
xattr -d com.apple.FinderInfo /Users/john/Documents/Finance/"test1 copy.txt"

It could then copy to the SMB share no problems.

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Answer 3

JabLab

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Apr 11, 2010 5:35 AM in response to JabLab

Uh oh. I think has part of my changes I altered sharing & permissions at the "Documents" level and chose "Apply to enclosed items". (see http://discussions.info.apple.com/thread.jspa?messageID=10988973&#10988973 for further info on this issue)

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Answer 4

Apr 18, 2010 1:27 AM in response to elliotchance

The solution is to add "unix extensions = no" to the global section of your smb.conf

this will fix the bug apple has made in there new 10.6.3

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Answer 5

JabLab

Level 1

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Apr 20, 2010 2:43 AM in response to marcelkraan

Seems to work. Thanks so much for the tip.
Note that this fix could cause problems if you have Linux clients which connect to the same server via SMB. Fortunately I don't - only Mac and Windows.

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Answer 6

elliotchance Author

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Apr 22, 2010 8:21 PM in response to JabLab

Unfortunately after making the change and restarting it makes no difference, as the server i'm 'samba-ing' with is linux.

I tried calling apple they gave me the "out of warranty, you can buy apple care or we cant help you"

Anybody got any other ideas? Isn't there a way I can just tell samba not to transfer the xattrs?

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Answer 7

etresoft

Level 9

56,356 points

Apr 23, 2010 8:44 AM in response to elliotchance

elliotchance wrote:
Anybody got any other ideas? Isn't there a way I can just tell samba not to transfer the

I think you will have to look on the server side. I just copied a file with extended attributes to a Samba server and it worked fine. The attributes are still there, no less. I don't know if this particular server is Linux or Windows. Regardless, the problem doesn't seem to be on the client side.

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