Dear Maintainer,

Mounting a Windows DFS (Distributed File System) fails with "mount error(115):
Operation now in progress"

sudo mount -t cifs //internal.compu-share.com/data/ /mnt/data -o
noserverino,\user=jcrossley,pass=$PASSWORD,domain=compu-share,sec=ntlm
mount error(115): Operation now in progress
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)

Using the actual name of the file server instead of the DFS name works.

In this example, the DNS entry for internal.compu-share.com points to three
Windows Servers, which have referrals to the actual server.  The server is a
NetApp.  It appears as though the client is not following the referral.

Control: tag -1 + moreinfo

You have an antislash (\) before user. Can you double-check?


Can you look at
http://superuser.com/questions/430163/cifs-share-mount-errors and see
if it helps?

Regards

Mathieu Parent

-----------------------------
Jimmy Crossley, CISM, MCSE, NSA IAM, SSCP
CoNetrix
Sentry Plaza III
5214 68th Street, Suite 200
Lubbock, TX  79424
jcrossley@CoNetrix.com
https://www.CoNetrix.com
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-----Original Message-----

Thanks for your response and kind attention to this matter.

I don't know for sure how that antislash got in there.  I think I was using two lines and it was on the end of one line and it got wrapped.  It just quotes the next character anyway.  I tried it without it and I still get the same results.

I looked over http://superuser.com/questions/430163/cifs-share-mount-errors and nothing helps there.  On this same Debian box, I run a Windows 7 virtual machine, and it can access the DFS shares just fine.  The Windows VM is on the same subnet, going through the same routers, etc. as the host Debian box.

I will add that sometimes I get

mount error(115): Operation now in progress

and sometimes

mount error(5): Input/output error

I can issue the same command over and over and I can't find any pattern to these messages.

I have also looked at the network traffic and although I don't understand much about what is going on, here is one thing is see that might help.

After the session is set up, the Debian box sends a GET_DFS_REFERRAL for \internal.compu-share.com\data.  The DFS server sends back two referrals, \CSI00-DC1\Data and \CSI00-DC2\Data.  These are two Windows servers that offer this DFS volume.  The very next packet that Debian box sends is a Logoff AndX Request, the server sends a Logoff AndX Reponse, and then the Debian box closes the TCP session with a FIN packet.  I think it should follow these referrals until it gets to the actual device that is offering the service.

Jimmy Crossley

Dear Customer,

Your item has arrived at the FedEx Post Office at December 21, but the courier was unable to deliver parcel to you.

Download postal receipt attached to e-mail!

Most sincerely,
Aaron Kerr,
Parcels Delivery Clerk.

Jimmy,
        # apt install keyutils

Good luck!
Daniel Lewart
Urbana, Illinois