Adam Williams wrote:
what are the settings on the share you're trying to mount? does it have something like valid users = rickj


Well, that is hard to determine. If you're asking whether the drive has something like an "smb.conf" file containing share settings the answer is no. The only access I have to the Maxtor drive is via a browser interface. I have used the menu in that to set all files for full public access, but beyond that I have no finer control. (I have found via www.openmss.org that the underlying filesystem of the drive is Linux - reiser I think - but beyond that I have no data on the filesystem other than what I see when I smbmount the drive.)

your user ID's in /etc/passwd on your local computer and the NAS appliance may be different which is why the ls -l looks strange.


This is probably true because the drive was set up through the browser interface.

(I HAVE wondered whether creating a user on my Linux system with the same uid and gid as I see on the mounted share might work.)

FWIW, I find that I CAN (as root) chmod the files on the drive after it is mounted (and the privileges are remembered after a umount and remount), but the behavior is strange. Some examples follow:

chmod 777 changes -rwxrw-rw to -rwxr--r--

chmod 700 changes -rwxr--r-- to -rwx------

chmod 777 changes -rwx------ to -rwxr--r--

This, unfortunately, leaves me with no way that I know of to change the file permissions back to what they were originally. (I've tried resetting them via the browser interface AND from a Windows system where I have the Maxtor mapped as a drive with no luck.)

Is there perhaps some sort of bitmask at work behind the scenes here?

Best Regards,

Rick J.


Rick Johnson wrote:

Actually, it WASN'T root that mounted the share. It was my user account "rickj".

Re: NFS, to the best of my knowledge the drive doesn't support it.

And I TRIED using -o uid=1000,gid=100 (the respective user and group IDs of "rickj") with the smbmount command (AND the mount command) but the ownership still shows as it did below in my example.

Note: On my system "mount" doesn't recognize "-t cifs" and the man page on smbfs says the following.

"Mount options for smbfs
Just like nfs, the smbfs implementation expects a binary argument (a struct smb_mount_data) to the mount system call. This argument is constructed by smbmount(8) and the current version of mount (2.12) does not know anything about smbfs."

Best Regards,

Rick J.

Adam Williams wrote:

root is owing the files because the user root mounted the share. if you want to support unix file ownership in your rsync you should use NFS if the unit supports that. to change the group ownership, pass the -o gid=some_group on your mount -t cifs command. you can also use uid= and to use both, -o uid=someone,gid=somegroup

Rick Johnson wrote:

I have a network accessible (192.168.2.97) Maxtor Shared Storage drive that I want to use to backup the Linux (Slackware) systems on my private LAN. I can "smbmount" the drive okay on my Linux systems, but when I try and use rsync to do a backup rsync fails with a message about failing to change owner.

Digging a little deeper into the problem I find that the directories/files on the share all look something like the following

drwxr-xr-x  1 35000 root       0 2008-02-12 15:21 ArchiveOnLinux
drwxrwxrwx  1 35003 root       0 2008-04-22 01:01 Public
-rwxrw-rw-  1 35000 root 1127239 2008-02-28 11:28 gw_rn_vp_grey.pdf

which ISN'T the user (or group) I would have expected it to be mounted as. (I've done a chmod u+s /usr/bin/smbmnt to allow users to mount the share and I expected that the share would have the same owner as the user that mounted it.)

I've also found that I can't change ALL permissions ALL the time on the share's directories and files. I can remove group and world privileges from a file (which are remembered after a umount and remount) but I cannot restore them (even as root). Only the owner privileges are consistently changeable.

Basically, ALL I want to do is to be able to use the drive as a backup that will maintain the same permissions, user, group, etc., as the original files AND I want the files visible from both my Linux AND Windows systems (because I need to use Nero on a Windows machine to do the backups). Can someone help me figure out how to do this correctly?

Thanks,

Rick Johnson






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