报错：

E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/g/glibc/libc6-dev_2.19-10ubuntu2.2_amd64.deb  Could not resolve ‘archive.ubuntu.com‘


E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/g/glibc/libc-dev-bin_2.19-10ubuntu2.2_amd64.deb  Could not resolve ‘archive.ubuntu.com‘


E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/g/glibc/libc6_2.19-10ubuntu2.2_amd64.deb  Could not resolve ‘archive.ubuntu.com‘


E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/main/g/glibc/libc6-dbg_2.19-10ubuntu2.2_amd64.deb  Could not resolve ‘archive.ubuntu.com‘


E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

解决方法：
root@node3:~/mycode# vim /etc/resolv.conf 

添加nameserver 8.8.8.8

apt-get Unable to fetch some archives