Comment 19 for bug 216990

ims, this is easily worked around by removing or commenting out the following line from /etc/pam.d/common-password:

password optional pam_smbpass.so nullok use_authtok use_first_pass

waltc, this is definately unrelated, as this is purely a warning from the PAM stack saying that it cannot load the pam_smbpass.so module which has nothing to do with NAS mounting whatsoever.

back to discussion about this bug...
What needs to occur for this ideally is that debconf would be used to manage common-password instead of having it statically in the libpam-runtime package. This way if you install libpam-smbpass, you'd get the needed entry in the file and if it isn't, it wouldn't be present, thus not causing this warning.