Yesterday I was rebooting my machine after installing a new monitor, and noticed that my Tomato router giving errors about not being able to access its CIFS/Samba mount on my desktop, which is where I have it store its logs. The error I kept getting was:
kernel: CIFS VFS: cifs_mount failed w/return code = -5
Turns out that at some point, Samba changed the default minimum allowed server protocol to allow only newer clients. This is probably fine for 99.99% of use cases out there, but for someone like me running old Tomato on my poor Linksys WRT54GL, it caused a problem.
The particular setting in question was server min protocol
changing its default from NT1 to SMB_02. So in my smb.conf,
my [global] section now has these two extra lines for backwards
compatibility with Tomato:
[global]
...
ntlm auth = ntlmv1-permitted
server min protocol = NT1
In case anyone cares what a share setting for Tomato’s CIFS mounting might look like:
[tomatodir]
comment = tomato router
path = /home/tomato
valid users = tomato
read only = no