IBM 150 Manual De Usuario

RS/6000 43P 7043 Models 150 and 260 Handbook

There are two other ways to alter the boot lists: System Management 
Services (SMS) and the AIX tool 

diag

.

On a Micro Channel-based RS/6000 system, you can enter debug mode, lldb, 
by switching the key to Service and pressing one of the following key 
combinations:

  • ctl-alt-numpad4 (on a graphical console)

  • CTL-\ (on an ASCII display)

The CTL-\ key combination is valid on most OEM terminals. On some IBM 
3151 terminals, using a cartridge, you may have to press CTL-NUMPAD4.

Since the Models 150 and 260 have a static electronic key that is set to 
Normal during the normal operation of AIX, the above key sequences will not 
work unless the debugger, lldb, is pinned. You can do this by entering the 
following command and rebooting your machine:

# bosboot -D -a -d /dev/hdiskx

Where 

hdiskx

 is the disk containing the boot logical volume. After rebooting 

your machine, using either of the two key sequences shown above will invoke 
the debugger on an ASCII terminal (although the debugger can be invoked 
with a graphical display keyboard, an ASCII terminal must be attached to use 
the debugger). Be aware that anyone using either a graphical or ASCII 
console will be able to make the machine unavailable to other users.

This section describes how to create system backups that will be restored on 
the same or different machines (cloning).

bootinfo

The type of machine (platform type) being used can be determined with the 

bootinfo

 command. This command uses the device configuration databases 

to obtain information. In addition, the 

bootinfo

 command uses the values that 

are stored in NVRAM.

To determine the platform of a running machine, use the

 bootinfo -p

 

command if the machine is running AIX Version 4.2 or later. If the machine is 
running AIX Version 4.1, use the

 bootinfo -T

 command. However, with