Dealing With A Boot Failure - HP Visualize J7000 Supplementary Manual

Dealing with a Boot Failure

To start this workstation from an operating system stored on a device different from the
usual boot device, to boot from a different disk, or to boot from another type of device (such
as an alternate hard disk or CD), see the following situations and examples that use the
Boot Console Handler. To access the Boot Console Handler, and for details on using it, see
Chapter 5 of this handbook.
• To boot from a known device containing a bootable operating system, type the following
at the prompt:
Main Menu: Enter command > boot device [Enter]
where device is the hardware path to the device, specified in Mnemonic Style
Notation.
For example, to boot an operating system stored on a DDS-format tape in a drive
located at scsi.1.0, go to the Main Menu of the Boot Console Handler and then type
the following command at the prompt:
Main Menu: Enter command > boot scsi.1.0 [Enter]
The operating system on the specified device is used to start the workstation.
• To interact with the Initial System Loader (ISL) before booting the workstation, type
the following at the prompt:
Main Menu: Enter command > boot device [Enter]
You are prompted: Interact with ISL (Y or N) > y [Enter]
Answering yes (y) causes the ISL to be loaded from the specified device. After a short
time, the following prompt appears on the screen:
ISL>
ISL is the program that actually controls the loading of the operating system. By
interacting with ISL, you can choose to load an alternate version of the HP-UX
operating system.
For example, if the usual kernel (/stand/vmunix) on the root disk has become
corrupted, boot the workstation from the backup kernel (/stand/vmunix.prev) by
typing the following at the ISL> prompt:
ISL> hpux /stand/vmunix.prev [Enter]
• To find the location of the bootable operating systems on the various media in the file
system, use the search ipl command. See the next subsection, "Searching for
Bootable Media."
Chapter 3
Troubleshooting
Dealing with a Boot Failure
51