Booting into Specific Targets

RHEL

• boots into graphical target state by default if the Server with GUI software selection is made during installation.

• can also be directed to boot into non-default but less capable operating targets from the GRUB2 menu.

• offers emergency and rescue boot targets.

  • special target levels can be launched from the GRUB2 interface by
    • selecting a kernel
    • pressing e to enter the edit mode
    • appending the desired target name to the line that begins with the keyword “linux”.
    • Press ctrl+x to boot into the supplied target
    • Enter root password
    • reboot when you are done

• You must know how to boot a RHEL 9 system into a specific target from the GRUB2 menu to modify the fstab file or reset an unknown root user password.

Append “emergency” to the kernel line entry:

Other options:

• “rescue”
• “1”
• “s”
• “single”