今天，想在自己的debian系統裏面裝下java8，添加了一個源update的時候出現的點問題就ctrl c了。沒想到之後再update就不行了。一直卡在100%正在讀報頭waiting for headers。網上查了一遍大多數都是複製黏貼的不靠譜。試了半天。也reboot過。最後終於找到有用的辦法。
就是去刪掉/var/lib/apt/lists/裏面所有的東西。
root@debian:/usr# apt-get update
忽略 http://mirrors.aliyun.com jessie InRelease
命中 http://mirrors.aliyun.com jessie-proposed-updates InRelease
命中 http://mirrors.aliyun.com jessie Release.gpg
命中 http://mirrors.aliyun.com jessie Release
命中 http://ppa.launchpad.net trusty InRelease
獲取：1 http://mirrors.aliyun.com jessie-proposed-updates/main Sources/DiffIndex [27.8 kB]
獲取：2 http://mirrors.aliyun.com jessie-proposed-updates/non-free Sources/DiffIndex [18.0 kB]
獲取：3 http://mirrors.aliyun.com jessie-proposed-updates/contrib Sources/DiffIndex [7,762 B]
獲取：4 http://mirrors.aliyun.com jessie-proposed-updates/main i386 Packages/DiffIndex [27.8 kB]
獲取：5 http://mirrors.aliyun.com jessie-proposed-updates/non-free i386 Packages/DiffIndex [19.0 kB]
獲取：6 http://mirrors.aliyun.com jessie-proposed-updates/contrib i386 Packages/DiffIndex [7,900 B]
獲取：7 http://mirrors.aliyun.com jessie-proposed-updates/contrib Translation-en/DiffIndex [8,392 B]
獲取：8 http://mirrors.aliyun.com jessie-proposed-updates/main Translation-en/DiffIndex [27.8 kB]
獲取：9 http://mirrors.aliyun.com jessie-proposed-updates/non-free Translation-en/DiffIndex [18.0 kB]
獲取：10 http://ppa.launchpad.net trusty/main Sources [663 B]
獲取：11 http://ppa.launchpad.net trusty/main i386 Packages [1,701 B]
獲取：12 http://ppa.launchpad.net trusty/main Translation-en [910 B]
100% [正在等待報頭]^C
root@debian:/usr# rm -rf /var/lib/apt/lists/*
root@debian:/usr# apt-get update
忽略 http://mirrors.aliyun.com jessie InRelease
獲取：1 http://mirrors.aliyun.com jessie-proposed-updates InRelease [139 kB]
獲取：2 http://mirrors.aliyun.com jessie Release.gpg [2,420 B]
獲取：3 http://mirrors.aliyun.com jessie Release [148 kB]
獲取：4 http://ppa.launchpad.net trusty InRelease [15.5 kB]
獲取：5 http://mirrors.aliyun.com jessie-proposed-updates/contrib Translation-en [14 B]
獲取：6 http://mirrors.aliyun.com jessie-proposed-updates/main Translation-en [167 B]
獲取：7 http://mirrors.aliyun.com jessie-proposed-updates/non-free Translation-en [14 B]
獲取：8 http://mirrors.aliyun.com jessie/main Sources [7,063 kB]
獲取：9 http://ppa.launchpad.net trusty/main Sources [663 B]
獲取：10 http://ppa.launchpad.net trusty/main i386 Packages [1,701 B]
獲取：11 http://ppa.launchpad.net trusty/main Translation-en [910 B]
獲取：12 http://mirrors.aliyun.com jessie/non-free Sources [99.2 kB]
獲取：13 http://mirrors.aliyun.com jessie/contrib Sources [50.4 kB]
獲取：14 http://mirrors.aliyun.com jessie/main i386 Packages [6,821 kB]
獲取：15 http://mirrors.aliyun.com jessie/non-free i386 Packages [79.5 kB]
獲取：16 http://mirrors.aliyun.com jessie/contrib i386 Packages [49.1 kB]
獲取：17 http://mirrors.aliyun.com jessie/contrib Translation-en [38.3 kB]
獲取：18 http://mirrors.aliyun.com jessie/main Translation-zh_CN [101 kB]
獲取：19 http://mirrors.aliyun.com jessie/main Translation-zh [1,526 B]
獲取：20 http://mirrors.aliyun.com jessie/main Translation-en [4,581 kB]
獲取：21 http://mirrors.aliyun.com jessie/non-free Translation-en [72.0 kB]
獲取：22 http://mirrors.aliyun.com jessie-proposed-updates/main Sources [1,036 B]
獲取：23 http://mirrors.aliyun.com jessie-proposed-updates/non-free Sources [32 B]
獲取：24 http://mirrors.aliyun.com jessie-proposed-updates/contrib Sources [32 B]
獲取：25 http://mirrors.aliyun.com jessie-proposed-updates/main i386 Packages [720 B]
獲取：26 http://mirrors.aliyun.com jessie-proposed-updates/non-free i386 Packages [32 B]
獲取：27 http://mirrors.aliyun.com jessie-proposed-updates/contrib i386 Packages [32 B]
下載 19.3 MB，耗時 39秒 (489 kB/s)
正在讀取軟件包列表... 完成