root@helpdesk:/var# sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these.
The following packages have unmet dependencies:
 linux-image-server : Depends: linux-image-3.2.0-31-generic but it is not installed
E: Unmet dependencies. Try using -f.

so I type apt-get -f install


Preconfiguring packages ...
(Reading database ... 286035 files and directories currently installed.)
Unpacking linux-image-3.2.0-35-generic (from .../linux-image-3.2.0-35-generic_3.2.0-35.55_amd64.deb) ...
Done.
dpkg: error processing /var/cache/apt/archives/linux-image-3.2.0-35-generic_3.2.0-35.55_amd64.deb (--unpack):
 failed in write on buffer copy for backend dpkg-deb during `./boot/System.map-3.2.0-35-generic': No space left on device
No apport report written because MaxReports is reached already
                                                              dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.2.0-35-generic /boot/vmlinuz-3.2.0-35-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.2.0-35-generic /boot/vmlinuz-3.2.0-35-generic
Preparing to replace perl 5.14.2-6ubuntu2.1 (using .../perl_5.14.2-6ubuntu2.2_amd64.deb) ...
Unpacking replacement perl ...
Preparing to replace libperl5.14 5.14.2-6ubuntu2.1 (using .../libperl5.14_5.14.2-6ubuntu2.2_amd64.deb) ...
Unpacking replacement libperl5.14 ...
Preparing to replace perl-base 5.14.2-6ubuntu2.1 (using .../perl-base_5.14.2-6ubuntu2.2_amd64.deb) ...
Unpacking replacement perl-base ...
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/linux-image-3.2.0-35-generic_3.2.0-35.55_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)