He instalado Ubuntu 12.04 en una computadora. Todo está bien sin actualización. Justo después de la instalación, mostraba aproximadamente 200 MB de actualizaciones para descargar. Desde entonces estoy intentando instalar todas las actualizaciones. Ahora está parcialmente completado, parte del software (firefox, VLC) está actualizado. Todavía muestra actualizaciones de 39.3 MB para descargar y falla una y otra vez. Cada vez que traté de instalar estas actualizaciones de 39.3 MB, muestra que no se puede conectar a Internet, pero no hay ningún problema con mi conexión (el indicador de red muestra que está conectado y puedo buscar y descargar cualquier cosa). Me está dando el siguiente mensaje:
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-image-3.2.0-43-generic-pae_3.2.0-43.68_i386.deb Size mismatch
Failed to fetch http://us.archive.ubuntu.com/ubuntu/pool/main/l/linux/linux-headers-3.2.0-43-generic-pae_3.2.0-43.68_i386.deb Size mismatch
Pensé que esto es un problema con la lista de fuentes. Entonces he dado el siguiente comando
sudo rm -vf /var/lib/apt/lists/partial/*
Anteriormente, me he enfrentado a un tipo similar de problema con una computadora diferente. En ese momento, esta solución funcionó para mí, pero ahora todavía estoy enfrentando este problema. Alguien, por favor, ayúdame a resolver este problema.
Actualizar
Aquí está la salida de sudo apt-get update
Hit http://dl.google.com stable Release.gpg
Hit http://archive.canonical.com precise Release.gpg
Get:1 http://extras.ubuntu.com precise Release.gpg [72 B]
Hit http://dl.google.com stable Release
Hit http://us.archive.ubuntu.com precise Release.gpg
Hit http://archive.canonical.com precise Release
Hit http://dl.google.com stable/main i386 Packages
Hit http://extras.ubuntu.com precise Release
Ign http://dl.google.com stable/main TranslationIndex
Get:2 http://us.archive.ubuntu.com precise-updates Release.gpg [198 B]
Hit http://archive.canonical.com precise/partner i386 Packages
Hit http://extras.ubuntu.com precise/main Sources
Hit http://us.archive.ubuntu.com precise-backports Release.gpg
Ign http://archive.canonical.com precise/partner TranslationIndex
Hit http://extras.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise-security Release.gpg
Ign http://extras.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise Release
Ign http://dl.google.com stable/main Translation-en_US
Get:3 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Ign http://dl.google.com stable/main Translation-en
Get:4 http://us.archive.ubuntu.com precise-updates Release [49.6 kB]
Ign http://archive.canonical.com precise/partner Translation-en_US
Ign http://archive.canonical.com precise/partner Translation-en
Hit http://us.archive.ubuntu.com precise-backports Release
Hit http://us.archive.ubuntu.com precise-security Release
Ign http://extras.ubuntu.com precise/main Translation-en_US
Hit http://us.archive.ubuntu.com precise/main Sources
Ign http://extras.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Sources
Hit http://us.archive.ubuntu.com precise/universe Sources
Hit http://us.archive.ubuntu.com precise/multiverse Sources
Hit http://us.archive.ubuntu.com precise/main i386 Packages
Hit http://us.archive.ubuntu.com precise/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise/universe i386 Packages
Hit http://us.archive.ubuntu.com precise/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise/main TranslationIndex
Hit http://us.archive.ubuntu.com precise/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise/universe TranslationIndex
Get:5 http://us.archive.ubuntu.com precise-updates/main Sources [383 kB]
Get:6 http://us.archive.ubuntu.com precise-updates/main Sources [383 kB]
Get:7 http://us.archive.ubuntu.com precise-updates/restricted Sources [5,467 B]
Get:8 http://us.archive.ubuntu.com precise-updates/universe Sources [87.1 kB]
Get:9 http://us.archive.ubuntu.com precise-updates/universe Sources [87.1 kB]
Get:10 http://us.archive.ubuntu.com precise-updates/universe Sources [87.1 kB]
Get:11 http://us.archive.ubuntu.com precise-updates/multiverse Sources [6,582 B]
Get:12 http://us.archive.ubuntu.com precise-updates/main i386 Packages [625 kB]
Get:13 http://us.archive.ubuntu.com precise-updates/restricted i386 Packages [10.0 kB]
Get:14 http://us.archive.ubuntu.com precise-updates/universe i386 Packages [203 kB]
Get:15 http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages [13.8 kB]
Get:16 http://us.archive.ubuntu.com precise-updates/multiverse i386 Packages [13.8 kB]
100% [16 Packages bzip2 0 B] [Connecting to us.archive.ubuntu.com (91.189.91.14
bzip2: Compressed file ends unexpectedly;
perhaps it is corrupted? *Possible* reason follows.
bzip2: Inappropriate ioctl for device
Input file = (stdin), output file = (stdout)
It is possible that the compressed file(s) have become corrupted.
You can use the -tvv option to test integrity of such files.
You can use the `bzip2recover' program to attempt to recover
data from undamaged sections of corrupted files.
Hit http://us.archive.ubuntu.com precise-updates/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-updates/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/main Sources
Hit http://us.archive.ubuntu.com precise-backports/restricted Sources
Hit http://us.archive.ubuntu.com precise-backports/universe Sources
Hit http://us.archive.ubuntu.com precise-backports/multiverse Sources
Hit http://us.archive.ubuntu.com precise-backports/main i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/universe i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise-backports/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-backports/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise-security/main Sources
Hit http://us.archive.ubuntu.com precise-security/restricted Sources
Hit http://us.archive.ubuntu.com precise-security/universe Sources
Hit http://us.archive.ubuntu.com precise-security/multiverse Sources
Hit http://us.archive.ubuntu.com precise-security/main i386 Packages
Hit http://us.archive.ubuntu.com precise-security/restricted i386 Packages
Hit http://us.archive.ubuntu.com precise-security/universe i386 Packages
Hit http://us.archive.ubuntu.com precise-security/multiverse i386 Packages
Hit http://us.archive.ubuntu.com precise-security/main TranslationIndex
Hit http://us.archive.ubuntu.com precise-security/multiverse TranslationIndex
Hit http://us.archive.ubuntu.com precise-security/restricted TranslationIndex
Hit http://us.archive.ubuntu.com precise-security/universe TranslationIndex
Hit http://us.archive.ubuntu.com precise/main Translation-en
Hit http://us.archive.ubuntu.com precise/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise/restricted Translation-en
Hit http://us.archive.ubuntu.com precise/universe Translation-en
Hit http://us.archive.ubuntu.com precise-updates/main Translation-en
Hit http://us.archive.ubuntu.com precise-updates/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-updates/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-updates/universe Translation-en
Hit http://us.archive.ubuntu.com precise-backports/main Translation-en
Hit http://us.archive.ubuntu.com precise-backports/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-backports/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-backports/universe Translation-en
Hit http://us.archive.ubuntu.com precise-security/main Translation-en
Hit http://us.archive.ubuntu.com precise-security/multiverse Translation-en
Hit http://us.archive.ubuntu.com precise-security/restricted Translation-en
Hit http://us.archive.ubuntu.com precise-security/universe Translation-en
Fetched 935 kB in 3min 39s (4,261 B/s)
W: Failed to fetch gzip:/var/lib/apt/lists/partial/us.archive.ubuntu.com_ubuntu_dists_precise-updates_multiverse_binary-i386_Packages Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.
sudo apt-get update
debería obtener los índices del paquete actual ...