Cannot open /dev/ttyS0: Permission denied
2013-05-16 17:53
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今天在ubuntu12.04上运行Serial port terminal 出现了Cannot open /dev/ttyS0: Permission denied提示字样
解决方法如下：
1.由于tty属于“dialout”组别，比如用户名是joeuser，先命令查看下用户隶属的组别
2.如果没有隶属“dialout”，那么把用户加入进去
http://askubuntu.com/questions/210177/serial-port-terminal-cannot-open-dev-ttys0-permission-denied
解决方法如下：
1.由于tty属于“dialout”组别，比如用户名是joeuser，先命令查看下用户隶属的组别
groups joeuser
2.如果没有隶属“dialout”，那么把用户加入进去
sudo gpasswd --add joeuser dialout
3.logout 再登录系统激活功能
http://askubuntu.com/questions/210177/serial-port-terminal-cannot-open-dev-ttys0-permission-denied
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