Verificar la integridad de los ficheros.
# debsums -s &> log.txt
# cat log.txt | grep "mismatch" | cut -d " " -f4 | uniq > reinstall.txt
# debsums -s | grep "mismatch" | cut -d " " -f4 | uniq > reinstall.txt
# apt-get install --reinstall `(cat reinstall.txt)`