우분투 11.04 apt-get not found 문제

11.04 has reached its end of life --

11.10 is the LTR. 

if you wish to continue using 11.04 

edit your /etc/apt/sources.list 

to use old-releases

http://askubuntu.com/questions/10147...end-of-support

출처 : http://ubuntuforums.org/showthread.php?t=2104335

Edit /etc/apt/sources.list and change 'archive.ubuntu.com' to 'old-releases.ubuntu.com'

출처 : http://askubuntu.com/questions/101479/are-existing-updates-available-after-end-of-support

한마디로

11.04 버전 source.list에서 apt-get 파일들을 엉뚱한 곳에서 찾음 -> old-releases 로 바꿔주니 잘 찾음