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samba-users: [Samba] smbclient -k works; mount -t cifs does not

[Samba] smbclient -k works; mount -t cifs does not

From: Mike Leone <turgon_at_nospam>
Date: Tue May 04 2010 - 03:25:13 GMT
To: Samba <samba@lists.samba.org>

I am confused (nothing new there ...). I have 2 Ubuntu 9.10 Samba
servers. I am trying to mount a share from the other (i.e., "workhorse"
is trying to mount a share on "dual-booter"). If I specify a smbmount
command with a -k option, I can mount the share:

turgon@workhorse:~$ klist
Ticket cache: FILE:/tmp/krb5cc_1000
Default principal: turgon@DACRIB.LOCAL

Valid starting Expires Service principal
05/03/10 18:55:31 05/04/10 04:55:31 krbtgt/DACRIB.LOCAL@DACRIB.LOCAL
        renew until 05/09/10 22:56:03
05/03/10 23:07:07 05/04/10 04:55:31
cifs/dual-booter.dacrib.local@DACRIB.LOCAL
        renew until 05/09/10 22:56:03

turgon@workhorse:~$ smbclient //dual-booter/TestShare /mnt -k
Domain=[DACRIB] OS=[Unix] Server=[Samba 3.4.0]
smb: \> ls
  . D 0 Sat May 1 19:27:48 2010
  .. D 0 Mon May 3 19:58:00 2010
  TestFile 0 Sat May 1 19:27:48 2010

                37555 blocks of size 524288. 22379 blocks available

However, I can't seem to mount it using mount -t cifs:

$ sudo mount -t cifs //dual-booter/TestShare /mnt -o username=DACRIB+turgon
[sudo] password for turgon:
Password:
mount error(13): Permission denied
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

What I'd like to do is to set this in /etc/fstab. But there seems to be
no way to use Kerberos to authenticate the mounting, and it's only
Kerberos (and smbmount) that seems to work. And using the "-o sec=krb5"
options on mount doesn't seem to work, either.

$ sudo mount -t cifs //dual-booter/TestShare /mnt -o sec=krb5
mount error(2): No such file or directory
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Anyone? I really don't want to have to make a script that uses smbmount
-k, running on login, rather than in /etc/fstab.

Thanks
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