(Ubuntu 12.04 LTS::Precise Pangolin) aptitude update 時にエラーが出た時の対応

W: gzip:/var/lib/apt/lists/partial/jp.archive.ubuntu.com_ubuntu_dists_precise_main_source_Sources の取得に失敗しました ハッシュサムが適合しません
E: Some index files failed to download. They have been ignored, or old ones used instead.

aptitude update 時に上記のエラーが出た時の対応メモです。

$ sudo rm -rf /var/lib/apt/lists/*
$ sudo mkdir /var/lib/apt/lists/partial
$ sudo aptitude clean
$ sudo aptitude update
$ sudo aptitude safe-upgrade

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