Installation guide

Booting the System
HP-UX version 11.00.03 Starting and Stopping the System 3-17
Conditions might require that you reboot in a special way, such as in single-user
mode or with an alternate kernel. Table 3-8 provides guidelines to consider before
rebooting.
Issuing Console Commands
The console controller implements a console command interface that allows you to
initiate certain commands regardless of the system state (except no power). To use
the console command menu, do the following:
1. To put the console controller into command mode using a V105 terminal with
an ANSI keyboard, press the
<F5> key. Other terminals generally use the <Break>
key alone to enter command mode. If your terminal does not have a
<Break> key,
or if you are accessing the console through a connection that does not
recognize your
<Break> key, see your terminal’s documentation to determine
how to send a line break signal.
Table 3-8. Booting Sources
Boot this way . . . If . . .
In single-user
state
• You forgot the root password.
• /etc/passwd or /etc/inittab is corrupt.
With an alternate
kernel
• The system does not boot after reconfiguring the kernel.
• The default kernel returns the error “Cannot open or
execute.”
• The system stops while displaying the system message
buffer.
From other
hardware
You are recovering from the runtime support CD-ROM or
another bootable disk and at least one of the following:
• No bootable kernel on the original disk or flash card.
• Corrupt boot area.
• Bad root file system.
• init or inittab has been lost or corrupted.
• /dev/console, systty, syscon, or the root disk
devicefile is not correct.
• The system stops while displaying the system message
buffer and booting the alternate kernel fails.