安装使用linux遇到的问题及其解决办法
修改virtualbox 虚拟磁盘容量 ：
cd /home/edward/VirtualBox\ VMs/win7
vboxmanage modifyhd win7.vdi –resize 51200 (M)
linux 安装后WiFi关闭 ：
可能的解决办法是 开机按F2 ，再按F9 最后按F10 保存退出 之后重新开机即可。
ubuntu安装后无法以root login：
以用户login之后，
先设置root密码 : sudo passwd root
之后进入 /usr/share/lightdm/lightdm.conf.d/50-ubuntu.conf
在末尾添加 greeter-show-manual-login=true
保存退出并重启即可
root账户登录系统时候提示:Error found when loading /root/.profile stdin: is not a tty
进入 /root/.profile
增加一行 tty -s && mesg n
保存退出并重启
百度云在linux 的安装
可以安装BCloud
搜狗输入法在安装后切换到普通用户，然后在命令行中输入im-config ，修改为fcitx，最后在fictx configure 中加入sogou。
安装某个包的过程中(apt-get install *)，如果出现依赖包未安装，应该是安装源的问题，应该更新安装源。方法如下：
更换方法:
sudo cp /etc/apt/sources.list /etc/apt/sources.list.backup //备份源
sudo gedit /etc/apt/sources.list //打开删除其中的内容，加入下面的内容
163源
deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ trusty-backports main restricted universe multiverse
sohu源
deb http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.sohu.com/ubuntu/ trusty-backports main restricted universe multiverse
os-china源
deb http://mirrors.oschina.net/ubuntu/ trusty main restricted universe multiverse
deb http://mirrors.oschina.net/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirrors.oschina.net/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://mirrors.oschina.net/ubuntu/ trusty-security main restricted universe multiverse
deb http://mirrors.oschina.net/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://mirrors.oschina.net/ubuntu/ trusty main restricted universe multiverse
deb-src http://mirrors.oschina.net/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://mirrors.oschina.net/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://mirrors.oschina.net/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://mirrors.oschina.net/ubuntu/ trusty-updates main restricted universe multiverse
保存之后，用下面的命令使源生效:
sudo apt-get update