最近公司服务器因为某些原因，导致服务器环境需要全部重新部署，安装nodejs又忘了，记录下，方便下次使用。
安装最新版nodejs
更新ubuntu软件源
sudo apt-get update
sudo apt-get install -y python-software-properties software-properties-common
sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
安装nodejs
sudo apt-get install nodejs
更新npm的包镜像源，方便快速下载
sudo npm config set registry https://registry.npm.taobao.org
sudo npm config list
全局安装n管理器(用于管理nodejs版本)
sudo npm install n -g
安装最新的nodejs（stable版本）
sudo n stable
sudo node -v
QA
Q: 更新软件源出现-找不到对应的KEY
// error code
W: There is no public key available for the following key IDs:
8B48AD6246925553
W: Failed to fetch http://mirrors.aliyuncs.com/ubuntu/dists/precise/Release.gpg Could not connect to mirrors.aliyuncs.com:80 (10.143.34.200), connection timed out
// A：resolve: add key
gpg --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553
gpg -a --export 8B48AD6246925553 | sudo apt-key add -
Q: aliyun、163等其他软件源一直出现下载失败
// error code
W: Failed to fetch http://mirrors.163.com/ubuntu/dists/precise/Release.gpg Could not connect to mirrors.163.com:80 (123.58.173.106). - connect (111: Connection refused)
W: Failed to fetch http://mirrors.163.com/ubuntu/dists/precise-security/Release.gpg Unable to connect to mirrors.163.com:http:
W: Failed to fetch http://mirrors.163.com/ubuntu/dists/precise-updates/Release.gpg Unable to connect to mirrors.163.com:http:
W: Failed to fetch http://mirrors.163.com/ubuntu/dists/precise-proposed/Release.gpg Unable to connect to mirrors.163.com:http:
W: Failed to fetch http://mirrors.163.com/ubuntu/dists/precise-backports/Release.gpg Unable to connect to mirrors.163.com:http:
W: Some index files failed to download. They have been ignored, or old ones used instead.
// A: 部分网络问题，下载失败，尝试换成官方源，虽然比较慢，但是能下载
// resolve：修改apt文件 /etc/apt/sources.list（注意备份）
# Ubuntu官方
deb http://cn.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
Q: sudo make编译nodejs失败
make[1]: *** [/home/software/node-v7.8.0/out/Release/obj.target/v8_libplatform/deps/v8/src/libplatform/default-platform.o] Error 1
make[1]: Leaving directory `/home/software/node-v7.8.0/out'
make: *** [node] Error 2
// A: gcc版本太低，需要把gcc升级到4.8以上
ubuntu软件源
修改/etc/apt/sources.list为以下软件源（改前请备份）
163和里面在部分网络下会一直下载失败，可以改回官方源下载
源列表
http://wiki.ubuntu.org.cn/模板:14.04source
Ubuntu官方
deb http://cn.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb http://cn.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://cn.archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
163软件源
deb http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ precise-backports main restricted universe multiverse
aliyun软件源
deb http://mirrors.aliyun.com/ubuntu/ precise main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ precise-security main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://mirrors.aliyun.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ precise main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://mirrors.aliyun.com/ubuntu/ precise-backports main restricted universe multiverse
deb http://mirrors.aliyuncs.com/ubuntu/ precise main restricted universe multiverse
deb http://mirrors.aliyuncs.com/ubuntu/ precise-security main restricted universe multiverse
deb http://mirrors.aliyuncs.com/ubuntu/ precise-updates main restricted universe multiverse
deb http://mirrors.aliyuncs.com/ubuntu/ precise-proposed main restricted universe multiverse
deb http://mirrors.aliyuncs.com/ubuntu/ precise-backports main restricted universe multiverse
deb-src http://mirrors.aliyuncs.com/ubuntu/ precise main restricted universe multiverse
deb-src http://mirrors.aliyuncs.com/ubuntu/ precise-security main restricted universe multiverse
deb-src http://mirrors.aliyuncs.com/ubuntu/ precise-updates main restricted universe multiverse
deb-src http://mirrors.aliyuncs.com/ubuntu/ precise-proposed main restricted universe multiverse
deb-src http://mirrors.aliyuncs.com/ubuntu/ precise-backports main restricted universe multiverse