CIFS Mounts Fail with Kernel 3.8.1-201.fc18.i686.PAE

[Ranjan Maitra]

On Sat, 9 Mar 2013 08:59:28 -0500 Tim Evans <tkevans at tkevans.com> wrote:

> On 03/08/2013 07:08 PM, Ed Greshko wrote:
> > On 03/09/13 07:15, Tim Evans wrote:
> >> # mount //raptor/unix/FEDORA /raptor
> >> Password for root@//raptor/unix/FEDORA:  ********
> >> mount error(95): Operation not supported
> >> Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
> >>
> >> /var/log/messages says:
> >>
> >> Mar  8 18:09:28 harrier kernel: [  137.431753] FS-Cache: Loaded
> >> Mar  8 18:09:28 harrier kernel: [  137.450501] Key type dns_resolver registered
> >> Mar  8 18:09:28 harrier kernel: [  137.487793] FS-Cache: Netfs 'cifs' registered for caching
> >> Mar  8 18:09:28 harrier kernel: [  137.487890] Key type cifs.spnego registered
> >> Mar  8 18:09:28 harrier kernel: [  137.487899] Key type cifs.idmap registered
> >> Mar  8 18:09:28 harrier kernel: [  138.043492] CIFS VFS: Send error in QFSUnixInfo = -95
> >> Mar  8 18:09:28 harrier kernel: [  138.093133] CIFS VFS: cifs_read_super: get root inode failed
> >>
> >> Same mount, no problem in kernel-PAE-3.7.9-205.fc18.i686
> >
> > Try adding "sec=ntlm" to the mount options.
> >
> > The error seen with recent kernels is usually "mount error(22): Invalid argument" and adding the sec option fixes it....so this may not be related.
> >
> Yeah!  This works:
> 
> # mount.cifs //raptor/unix/FEDORA /raptor -o sec=ntlm

Btw, for me, sec=ntlmssp and sec=ntlmv2 continue to work under all F18
kernels stably released so far.

Ranjan


> Should have mentioned in my first post: the server is a NetGear ReadyNAS 
> (linux-based) storage appliance, not a PC.  There is, however, no 
> command-line access to the server's OS; just a web browser interface, 
> with almost no authentication options.
> 
> Not to take this too OT, but I've used cifs mounts here because NFS 
> performance sucks with the same NAS--about 300k/second on backups using 
> dump.
> -- 
> Tim Evans			|   5 Chestnut Court
> Linux/UNIX Consulting		|   Owings Mills, MD 21117
> http://www.tkevans.com/		|   443-394-3864
> tkevans at tkevans.com
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