Ubuntu enters the text interface

Before entering the text interface of ubuntu, I have been using ubuntu to develop TI programs, samba sharing, coding on winXP, and ssh compilation. Later I did not know what programs were updated, there is a process that occupies about 85% of CPU resources. It will immediately get up after it is killed,
It seems that the process is related to the database; www.2cto.com cannot find this solution on the Internet; I think the background process may not get up if it is not in the graphic interface; however, ubuntu and redhat have different ways of entering the text interface. The change to ubuntu is: // The following is the network reference, you only need to edit the file "/etc/default/grub" and change "GRUB_CMDLINE_LINUX_DEFAULT =" quiet splash "to" GRUB_CMDLINE_LINUX_DEFAULT = "quiet splash text" (that is, add "text" to the marker "), then run "sudo update-grub. (I restarted the system directly) and the process that occupied the resource did not exist.