ubuntu apt-get update Failed

當執行apt-get update 失敗時，有可能是mirror網址出了問題，可以依下列方式來修改連結



1.Failed msut modify  /etc/apt/source.list

2.edit all website

<例如>
http://tw.archive.ubuntu.com/ubuntu/ lucid universe
to
http://us.archive.ubuntu.com/ubuntu/ lucid universe

3.save file

4.#apt-get update   successful


失敗原因如下

Err http://tw.archive.ubuntu.com lucid/restricted Sources
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid/universe Packages 
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid/universe Sources  
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid/multiverse Packages
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid/multiverse Sources
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/main Packages
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/restricted Packages
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/main Sources
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/restricted Sources
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/universe Packages
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/universe Sources
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/multiverse Packages
  Unable to connect to tw.archive.ubuntu.com:http:
Err http://tw.archive.ubuntu.com lucid-updates/multiverse Sources
  Unable to connect to tw.archive.ubuntu.com:http:
W: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/lucid/Release.gpg  Could not connect to tw.archive.ubuntu.com:80 (140.112.8.139). - connect (110: Connection timed out)

W: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/lucid/main/i18n/Translation-en_US.bz2  Unable to connect to tw.archive.ubuntu.com:http:

W: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/lucid/restricted/i18n/Translation-en_US.bz2  Unable to connect to tw.archive.ubuntu.com:http:

W: Failed to fetch http://tw.archive.ubuntu.com/ubuntu/dists/lucid/universe/i18n/Translation-en_US.bz2  Unable to connect to tw.archive.ubuntu.com:http: