修改root下隐藏文件.profile文件最后两句，以下是修改过的：
# ~/.profile: executed by Bourne-compatible login shells.
if [ "$BASH" ]; then
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
fi
mesg n
# Installed by Debian Installer:
# no localization for root because zh_CN.UTF-8
# cannot be properly displayed at the Linux console
LANG="zh_CN.UTF-8"
LANGUAGE="zh_CN:zh"
