is not in the sudoers file

is not in the sudoers file

i type su to use root(if your su has no password,you should change user,type sudo passwd to give a password to su,then reture )

in root mode. chmod u+w /etc/sudoers

gedit /etc/sudoers ,type oracle ALL=(ALL) ALL (oracle is your system name) after root ALL=(ALL) ALL chmod u-w /etc/sudoers

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read http://www.linuxidc.com/Linux/2010-12/30386.htm

http://blog.csdn.net/david_xtd/article/details/7229325

update 2016-8-14