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W: Failed to fetch bzip2:/var/lib/apt/lists/partial/ubuntu.qualitynet.net_ubuntu_dists_precise-backports_universe_source_Sources Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.
anurag@hanuman:~$ sudo apt-get dist-upgrade
答案1
由于更新存储库时缺少某些数据,导致哈希值不匹配错误。在更新存储库之前,请尝试以下命令,
sudo rm -fR /var/lib/apt/lists/*
然后运行,
sudo apt-get update