错误提示:Read-only file system.

解决:

Simply change ro to rw and add the remount option

# mount -o rw,remount /system

Once you are done making changes, you should remount with the original readonly.

# mount -o ro,remount /system

原文链接

更新 Hosts

wget -c http://smarthosts.googlecode.com/svn/trunk/hosts >> /etc/hosts