Error al desinstalar paquetes

[banderas20]

Buenas,

Estoy intentando instalar un front-end para Squid (Artica), y después de bajarse medio Internet, me da el siguiente error que no sé interpretar:

Código:

    Setting up nscd (2.13-38+deb7u8) ...
    insserv: warning: script 'samba' missing LSB tags and overrides
    insserv: There is a loop between service monit and samba if stopped
    insserv:  loop involving service samba at depth 2
    insserv:  loop involving service monit at depth 1
    insserv: Stopping samba depends on monit and therefore on system facility `$all' which can not be true!
    insserv: exiting now without changing boot order!
    update-rc.d: error: insserv rejected the script header
    dpkg: error processing nscd (--configure):
    subprocess installed post-installation script returned error exit status 1
    Processing triggers for initramfs-tools ...
    update-initramfs: Generating /boot/initrd.img-3.2.0-4-amd64
    W: mdadm: unchecked configuration file: /etc/mdadm/mdadm.conf
    W: mdadm: please read /usr/share/doc/mdadm/README.upgrading-2.5.3.gz .
    W: mdadm: no arrays defined in configuration file.
    Errors were encountered while processing:
    clamav-daemon
    kbd
    lvm2
    mdadm
    nscd
    E: Sub-process /usr/bin/dpkg returned an error code (1)
    Checking.............: system...
    Checking.............: AppArmor...
    Checking.............: Base system...

Y si intento reinstalar alguno de ellos:

Código:

    E: Internal Error, No file name for kbd:amd64

No sé por dónde tirar... ¿alguna idea?

Gracias!