Ubuntu root account startup and Ccomp * Compilation error document

Ubuntu does not start the ROOT account at the beginning. We recommend that you use a common account to perform operations. Generally, you are competent to use it. However, as a system administrator, some operations must be performed under the ROOT account, in addition, the software operations under the ROOT account are not the same; the most typical is QQ, there is no taskbar prompt under the ordinary account, and there is. the method to enable it is also relatively simple $ sudopasswdroot in Ubuntu System Management ----- User Logon ----- security, set the ROOT can

Ubuntu does not start the ROOT account at the beginning. We recommend that you use a common account to perform operations. Generally, you are competent to use it. However, as a system administrator, some operations must be performed under the ROOT account, and the software operations under ROOT are not the same;

The most typical is QQ. There is no taskbar prompt under a common account, but there is a prompt under ROOT.

The method for enabling is also relatively simple.

$ Sudo passwd root

In Ubuntu System Management ----- User Logon ----- security, set ROOT to log on

Restart X.

C compiler error, need to reinstall GCC

Sudo apt-get install gcc