The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.
This chapter describes the Oracle Linux boot process, how to use the GRUB boot loader, how to change the run level of a system, and how to configure the services that are available at each run level.