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LPAR won't boot on Power 8 Machine

Troubleshooting


Problem

After moving an LPAR to a Power 8 Machine the LPAR won't boot

Cause

This is mainly caused because the LPAR has been recently migrated to a Power 8 Machine and does not meet the minimum requirements of a Power 8 Machine

Diagnosing The Problem

This issue is usually pointed out after collecting a boot debug the boot debug will look similar to the snippet below
LED{814}
LED{A20}
Illegal Trap Instruction Interrupt in Kernel
.jfs_rootinit+000320 tweq r14,r14
r14=0000000000000074 <== this error indicates that the OS level does not meet the minimum level required by the Power 8 Machine

Resolving The Problem

This issue cannot be resolved on a Power 8 Machine the minimum supported level has to met before migrating the LPAR to a Power 8 Machine. So the LPAR has to be migrated back to the previous Power Machine and perform an upgrade to any of the levels listed below

The minimum supported levels for the Power 8 Machines are

  • AIX 6.1
    1. Technology Level 7 Service Pack 6 or higher
    2. Technology Level 8 Service Pack 1 or higher
    3. Technology Level 9 Service Pack 1 or higher
  • AIX 7.1
    1. Technology Level 1 Service Pack 6 or higher
    2. Technology Level 2 Service Pack 1 or higher
    3. Technology Level 3 Service Pack 1 or higher

[{"Product":{"code":"SWG10","label":"AIX"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Not Applicable","Platform":[{"code":"PF002","label":"AIX"}],"Version":"6.1;7.1","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Product":{"code":"SWG10","label":"AIX"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]

Document Information

Modified date:
17 June 2018

UID

isg3T1023828

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