ALICE:/home/pinguix# sudo apt-get update
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 NETINST Binary-1 20070407-11:29] etch Release.gpg
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 NETINST Binary-1 20070407-11:29] etch Release
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 NETINST Binary-1 20070407-11:29] etch/contrib Packages/DiffIndex
Ign cdrom://[Debian GNU/Linux 4.0 r0 _Etch_ - Official i386 NETINST Binary-1 20070407-11:29] etch/main Packages/DiffIndex
Des:1 http://nisamox.fciencias.unam.mx etch Release.gpg [378B]
Obj http://nisamox.fciencias.unam.mx etch Release
Ign http://nisamox.fciencias.unam.mx etch/main Packages/DiffIndex
Ign http://nisamox.fciencias.unam.mx etch/main Sources/DiffIndex
Obj http://nisamox.fciencias.unam.mx etch/main Packages
Obj http://nisamox.fciencias.unam.mx etch/main Sources
Des:2 http://debian.beryl-project.org etch Release.gpg [191B]
Des:3 http://debian.beryl-project.org etch Release [2269B]
Des:4 http://debian.beryl-project.org etch/main Packages [7058B]
Des:5 http://security.debian.org etch/updates Release.gpg [189B]
Obj http://security.debian.org etch/updates Release
Ign http://security.debian.org etch/updates/main Packages/DiffIndex
Ign http://security.debian.org etch/updates/contrib Packages/DiffIndex
Ign http://security.debian.org etch/updates/main Sources/DiffIndex
Ign http://security.debian.org etch/updates/contrib Sources/DiffIndex
Obj http://security.debian.org etch/updates/main Packages
Obj http://security.debian.org etch/updates/contrib Packages
Obj http://security.debian.org etch/updates/main Sources
Obj http://security.debian.org etch/updates/contrib Sources
Descargados 9520B en 7s (1350B/s)
Imposible obtener http://debian.beryl-project.org/dists/etch/Release  Unable to find expected entry  mai/source/Sources in Meta-index file (malformed Release file?)
Leyendo lista de paquetes... Hecho
E: Algunos archivos de índice no se han podido descargar, se han ignorado,
o se ha utilizado unos antiguos en su lugar.
ALICE:/home/pinguix#