aptitude install samba
The following NEW packages will be installed:
  samba
0 packages upgraded, 1 newly installed, 0 to remove and 64 not upgraded.
Need to get 0 B/7,637 kB of archives. After unpacking 21.6 MB will be used.
Preconfiguring packages ...
Selecting previously deselected package samba.
(Reading database ... 121890 files and directories currently installed.)
Unpacking samba (from .../samba_2%3a3.5.6~dfsg-3squeeze4_i386.deb) ...
Processing triggers for man-db ...
Setting up samba (2:3.5.6~dfsg-3squeeze4) ...
/var/lib/dpkg/info/samba.postinst: 64: cannot create /etc/samba/smbpasswd: Directory nonexistent
dpkg: error processing samba (--configure):
 subprocess installed post-installation script returned error exit status 2
configured to not write apport reports
                                      Errors were encountered while processing:
 samba
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install.  Trying to recover:
Setting up samba (2:3.5.6~dfsg-3squeeze4) ...
/var/lib/dpkg/info/samba.postinst: 64: cannot create /etc/samba/smbpasswd: Directory nonexistent
dpkg: error processing samba (--configure):
 subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
 samba