[Samba] Maxtor NAS share problem
Rick Johnson
rrj0304 at verizon.net
Fri Apr 25 10:35:33 GMT 2008
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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