Forget rhlinux OS root password solution

Many novice Linux operating system people occasionally encounter such a problem, forget the root password (really human tragedy), or use the passwd instructions when the user forgot to add a username, (passwd is used to change the user's password instructions, which must have been known to know, If you forget to add the user name will modify the current login user's password, and led to the direct replacement of the root password, after the boot input password how can not enter.

Many people encounter such a problem is either a reload, or helpless, the reload can really solve your problem almost all you want to solve (after all, install Linux relative to the installation window is faster than the speed), but this is only a symptom not the root cause, if the next encounter it? Moreover, if it is installed on the virtual machine is fine, if installed on the real machine, which has a lot of important information, this can be a loss.

Do not panic in this situation, a few simple steps can be done:

A Press the ENTER key at the reciprocal interface (pictured):

Two When you enter this interface, press E key:

Three In this interface through the up and down button to navigate to the kernel option, the following icon Red line of the options, and then click E to enter: