6. When unmounted, you can reboot the system by typing reboot and pressing the Enter key, or just pressing the reboot key on the machine. Remember to remove your optical media as the system reboots, or you may accidentally boot from it.
Now if you boot the system into runlevel 1 (type 1 at Boot Options in the initial GRUB boot screen), you will be able to log in without a password (On newer versions of SUSE you will not be able to log in as root at a higher runlevel after doing this.) You will see Press enter for login:. Do so, and you will be logged in as root. Type passwd to change the password, and then all will be well.
The Rescue System is something every administrator and user should have in his or her arsenal as it can help you fix pretty much any lethal problem you have on a Linux system, regardless of whether it is SUSE-based or not.
This chapter has provided a great deal of information about the Linux boot process and the way in which you can start various services by associating them with Linux runlevels. You learned how to customize the boot process for both Linux-only and dual-boot Windows/Linux systems. The last section explained various ways to correct boot process configuration problems. All in all, this chapter should have you well on your way to becoming a Linux system administrator (or the administrator of your own home Linux system). The only thing remaining is experience, which you will accumulate as you perform more and more of your daily activities on your SUSE Linux system.
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