我是 linux 新手，想使用 ubuntu 11.10 运行汇编语言程序。安装失败显示以下消息
Reading package lists… Done
Building dependency tree
Reading state information… Done
The following packages were automatically installed and are no longer required:
mplayer-skins mplayer libggi2 libgii1 libgii1-target-x youtube-dl
Use ‘apt-get autoremove’ to remove them.
The following NEW packages will be installed:
nasm
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 1557kB of archives.
After unpacking 2855kB of additional disk space will be used.
Err
http://archive.ubuntu.com/ubuntu/onieric/main nasm i386 2.09.081 could
not resolve 'archive.ubuntu.com'.
failed to fetch
http://archive.ubuntu.com/ubuntu/pool/main/n/nasm/nasm-2.09.08-1-i386.deb
could not resolve 'archive.ubuntu.com'
E: unable to fetch some archives, maybe run apt-get update or try with
--fix -missing?
我无法弄清楚问题到底是什么？我想提一下，我一直在通过 Live CD 使用 ubuntu，而不是作为已安装的操作系统。