How to fix the autoboot issue with PowerLinux

The Problem

I have configured petitboot to boot PowerKVM 3.1 installed on /dev/sda2, but even after rebooting, it will stays on the petitboot menu. I have to manually select the boot entry to boot into PowerKVM.

The environment

System type: 8284-22A     FW830.00 (SV830_023)

Petitboot Logs

cat /var/log/petitboot/pb-discover.log
--- pb-discover ---
Detected platform type: powerpc
Running command:
exe:  nvram
argv: 'nvram' '--print-config' '--partition' 'common'
autoboot: enabled, 3 sec
network configuration:
  interface 6c:ae:8b:6a:74:14
  dns server
  boot device 070a7d69-b69d-4870-851f-3956ac94e41a
boot priority order:
    network: 0
        any: 1
  IPMI boot device 0x01 (persistent)
language: en_US.utf8

Root Cause

So the root cause is the boot configuration conflict. Someone has set it to boot from a network via IPMI command. And unfortunately when i configure it to boot from /dev/sda2, petitboot did not give me a warning. (This has been fixed in FW840)

Run the following ipmi command will prove the above analysis:

Get System Boot Options- NetFn = Chassis (0x00h), CMD = 0x09h

Response Data
0x00: No override
0x04: Force PXE
0x08: Force boot from default Hard-drive
0x14: Force boot from default CD/DVD
0x18: Force boot into BIOS setup

# ipmitool -I lanplus -H <fsp_ip> -P <passwd> raw 0x00 0x09 0x05 0x00 0x00

 01 05 c0 04 00 00 00

Here 0x04 indicates a boot override (Force PXE boot) . That is why it won’t auto boot to /dev/sda2.

Or we can use the following IPMI command for simplicity:

# ipmitool -I lanplus -H <fsp_ip> -P <passwd> chassis bootparam get 0x05
Boot parameter version: 1
Boot parameter 5 is valid/unlocked
Boot parameter data: c004000000
 Boot Flags :
 - Boot Flag Valid
 - Options apply to all future boots
 - BIOS PC Compatible (legacy) boot
 - Boot Device Selector : Force PXE
 - Console Redirection control : System Default
 - BIOS verbosity : Console redirection occurs per BIOS configuration setting (default)
 - BIOS Mux Control Override : BIOS uses recommended setting of the mux at the end of POST

The Fix

Set IPMI Boot Device to none:

# ipmitool -I lanplus -H <fsp_ip> -P <passwd> chassis bootdev none

After that, rebooting PowerLinux server will boot into /dev/sda2 automatically.

Update firmware to FW840

If the fw is updated to FW840, it will give you a warning on petitboot when you configure auto boot.

We can follow this link to update PowerLinux FW.




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