System Administration Guide: Basic Administration

SPARC: How to Boot the System With the Kernel Debugger (kadb)

  1. If you need to stop the system, type the stop key sequence for your system.

    The specific stop key sequence depends on your keyboard type. For example, you can press Stop-A or L1-A. On terminals, press the Break key.

    The PROM displays the ok prompt.

  2. Synchronize the file systems and write the crash dump.


    > n
    ok sync
    
  3. When you see the syncing file systems... message, press the stop key sequence for your system again.

  4. Boot the system with the kernel debugger.


    ok boot kadb
    
  5. Check kadb boot messages to verify that the system has booted with the kernel debugger.


    Rebooting with command: kadb
    Boot device: /iommu/sbus/espdma@4,800000/esp@4,8800000/sd@3,0
    .
    .
    .

SPARC: Example—Booting the System With the Kernel Debugger (kadb)


Press Stop-A
ok sync
syncing file systems...
Press Stop-A
ok boot kadb