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Parece que o smbfs está obsoleto e você deve usar o cifs. tente:
sudo apt-get install cifs-utils
Estou tentando instalar o smbfs no meu Ubuntu 12,10 e enfrentar o seguinte problema. Eu tentei desinstalar e reinstalar o samba, ainda os mesmos erros.
$ sudo apt-get install smbfs
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
smbfs : Depends: samba-common (= 2:3.4.7~dfsg-1ubuntu3) but 2:3.6.6-3ubuntu5 is to be installed
E: Unable to correct problems, you have held broken packages.
Por favor ajude.