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SUSE Linux Enterprise Server 11 Service Pack 3 (SLES 11 SP3)
SUSE Linux Enterprise Server 11 Service Pack 2 (SLES 11 SP2)
SUSE Linux Enterprise Server 11 Service Pack 1 (SLES 11 SP1)
The Windows server has been configured to onlyallow SMBv2.
If the Windows server is configured to allow SMBv1 the mountcommand works regardless of the presence of the vers= option.
SLES12 would be an example of a version that has a kernel version that is later than 3.5 which does have the vers= option.
The vers= option was added in the 3.5 kernel.
The kernel’s mount command doesn’t actually error out on its own when this option isused but simply ignores the option and sends SMBv1 headers. When the Windows server is configured to not allow SMBv1 theWindows server will send a TCP RST to the Negotiate ProtocolRequest sent from the SLES server with an SMBv1 header. This TCP RST results in anerror like this being seen at the console:
mount error (112): Host is down
Refer to the mount.cifs(8) manual page (e.g. man mount.cifs)
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