Avaya R3.0 manual Booting into single-user mode

Operating System Recovery

Booting into single-user mode

The advantage of single-user mode is that you do not need a boot diskette or CD-ROM. However, it does not give you the option to

●mount the file systems as read-only or

●not mount them at all.

If your system boots, but does not allow you to log in when it has completed booting, try single-user

mode. In single-user mode, your computer boots to runlevel 1. Your local file systems are mounted, but your network is not activated. You have a usable system maintenance shell. Unlike rescue mode, single-user mode automatically tries to mount your file system.

! CAUTION:

Do not use single-user mode if your file system cannot be mounted successfully. You cannot use single-user mode if the runlevel 1 configuration on your system is corrupted.

On an x305 IBM Server system using GRUB as the boot loader, use the following steps to boot into single-user mode:

1.If you have a GRUB password configured, type p and enter the password.

2.Select Red Hat Enterprise Linux with the version of the kernel that you wish to boot and type a to append the line.

3.Go to the end of the line and type single as a separate word. Press [Enter] to exit edit mode.

Tip:

Press the [Spacebar] and then type single.

4.Back at the GRUB screen, type b to boot into single-user mode.

-On an x305 IBM Server system using LILO as the boot loader, at the LILO boot prompt, type: linux single

Note:

If you are using the graphical LILO, press Ctrl-xto exit the graphical screen and go to the boot: prompt.

- For all other platforms, specify single as a kernel parameter at the boot prompt.

30 Secure Services Gateway (SSG) Maintenance Guide