Technical data

Chapter 3
Diagnostics
HP bc2100 ATCA Server Blade Functional Specifications
143
Selecting the Diagnostic Boot Sequence
When the default device(s) to be used for diagnostic boot have been configured, the Server Blade will respond
to IPMI requests to set the system boot options and boot from one of the configured diagnostic boot devices.
The following table summarizes the IPMI commands to invoke the one-time diagnostic boot sequence.
See “Using ipmitool to Request Diagnostic Boot” on page 190 for examples on using the ipmitool utility to
perform a diagnostic boot.
Service OS Configuration Information
User logins and passwords
The Service OS is a Linux distribution specifically created for running the diagnostics utility. It includes some
of the standard UNIX tools like grep, less, and vi.
Table 3-3 IPMI Commands for Diagnostic Boot
Command
Net
Function
Cmd
Code
Request Data
Set System
Boot Option
Chassis
(00h)
08h Byte 1 = 0x5 - Parameter Selector as ‘boot flags’
Byte 2 [7] = 1b - boot flags valid
[6] = 0b - options apply to next boot only
[5] = 0b - BIOS boot type (for BIOS variants that support
both legacy and EFI boots)
[4-0] 0b
Byte 3 [7] = 0b
[6] = 0b
[5:2] - Boot device selector
0001b = Force PXE
0010b = Force boot from default hard drive
0101b = Force boot from default CD/DVD
[1] = 0b
[0] = 0b
Byte 4 = 0b
Byte 5 = 0b
Byte 6 = 0b
Chassis
Control
Chassis 02h Byte 1
=2 - Power cycle
=3 - Hard reset