Web lists-archives.com

Re: [Samba] Share mounts in SMBv1 mode, but fails weirdly in SMBv2 mode




Le 13/10/2017 à 01:46, Jeremy Allison via samba a écrit :
On Thu, Oct 12, 2017 at 03:58:58PM +0200, Hadrien Grasland via samba wrote:
Hi,

We're slowly deprecating SMBv1 support at work, so I'm trying to
mount our Samba network shares using SMBv2.0. This should in
principle be supported by the server, and seems works well enough
for the Windows clients. But it fails for me with some errors which
I do not understand.

Can you help me figure out what's going on? Here's my system
configuration and a quick summary of what I have so far:

hadrien@linux-2ak3:~> uname -a
Linux linux-2ak3 4.13.5-1-default #1 SMP PREEMPT Thu Oct 5 18:28:26
UTC 2017 (3fd9659) x86_64 x86_64 x86_64 GNU/Linux
hadrien@linux-2ak3:~> /sbin/mount.cifs --version
mount.cifs version: 6.5
hadrien@linux-2ak3:~> sudo mount -v -t cifs //nfsserv22/expsi test
-o credentials=<path to credentials file>,vers=2.0
domain=LAL
mount.cifs kernel mount options: ip=134.158.91.155,unc=\\nfsserv22\expsi,vers=2.0,user=grasland,,domain=LAL,pass=********
mount error(95): Operation not supported
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
hadrien@linux-2ak3:~> dmesg | tail
[...]
[13424.783242] CIFS VFS: ioctl error in smb2_get_dfs_refer rc=-2
[13424.789504] CIFS VFS: cifs_read_super: get root inode failed

Replacing "vers=2.0" with "vers=1.0" in the mount command line makes
this work, so I'm quite confident that my general configuration is
correct and the problem is somehow specific to the SMBv2 protocol.
However, I'm a Samba newbie and would welcome any tips on how to
extract more information from this machine/server in order to figure
out why SMBv2 specifically is failing.
Can you get a wireshark trace on port 445 between client and
server ? That would help.

There you go. I attached it to the e-mail, not sure if that's the proper way to send (small) files around on this list, if not please tell me :)
--
To unsubscribe from this list go to the following URL and read the
instructions:  https://lists.samba.org/mailman/options/samba