Urgent: Fedora 18 update breaks mount.cifs
Chuck Forsberg WA7KGX N2469R
caf at omen.com
Wed Mar 6 11:22:45 UTC 2013
On 03/06/2013 01:49 AM, Paul Black wrote:
> On 6 March 2013 06:04, Ed Greshko <Ed.Greshko at greshko.com
> <mailto:Ed.Greshko at greshko.com>> wrote:
>
> On 03/06/13 13:27, Chuck Forsberg WA7KGX N2469R wrote:
> > After a routine yum update at omen.com <http://omen.com>,
> > the previously reported mount.cifs breakage has spread from
> rawhide to Fedora 18.
> >
> > It gives:
> > mount error(22): Invalid argument
> > Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
> >
> > man mount.cifs has not changed at all.
> >
> > Is this botch breakage or an unannounced flag day???
> >
> > The bugzilla reporting tool would not allow me to generate a new
> report.
> >
>
> Can we assume you are talking about a "clean" F18 system? Any
> reason not to post in the "users" mailing list?
>
> FWIW.....
>
> [egreshko at meimei ~]$ pwd
> /home/egreshko
> [egreshko at meimei ~]$ ls silly
> [egreshko at meimei ~]$ sudo mount -t cifs //silly/Pictures
> /home/egreshko/silly -o
> gid=egreshko,uid=egreshko,password=xxxxxx,username=xxxxxx
> [egreshko at meimei ~]$ ls silly
> 2010_12_12 desktop.ini iPod Photo Cache Nokia tiffs x
> [egreshko at meimei ~]$ uname -r
> 3.8.1-201.fc18.x86_64
>
> I see no "breakage".
>
>
> It broke for me. It was coincident with the change from kernel 3.7.9
> to 3.8.1 but I didn't investigate if this was the cause.
>
> Adding a "sec=" option with either ntlm or ntlmv2 worked for me.
> Slightly odd given that the man page says ntlm is the default.
>
> Digging a little more, a possibly relevant kernel commit from
> 2012-11-25 has the comment "default authentication needs to be at
> least ntlmv2 security for cifs mounts":
> -#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLM |
> CIFSSEC_MAY_NTLMV2 | CIFSSEC_MAY_NTLMSSP)
> +#define CIFSSEC_DEF (CIFSSEC_MAY_SIGN | CIFSSEC_MAY_NTLMSSP)
>
> --
> Paul
>
>
The "sec=ntlm" magic chant does the trick. Flag Day overcome. Thnx.
--
Chuck Forsberg WA7KGX caf at omen.com www.omen.com
Developer of Industrial ZMODEM(Tm) for Embedded Applications
Omen Technology Inc "The High Reliability Software"
10255 NW Old Cornelius Pass Portland OR 97231 503-614-0430
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