Question

Mention the run levels in Linux and steps to edit them.

Answer 1

Run levels are identified by numbers in Linux. The run levels determine what are the services that are currently in operation. There are seven different run levels in Linux:

• Halt System
• Single User Mode
• User Multi-Mode excluding NFS
• Full Multi-User mode
• Unused
• Multi-User mode (Graphical user mode)
• Reboot System
• To change the edit level /etc/inittlab and edit the initdefault entry.