Troubleshooting a system that does not boot from the hard disk

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Follow this procedure to access a system that will not boot from the hard disk.

If a mksysb backup tape fails to boot, read Troubleshooting an installation from a system backup for instructions.

This procedure enables you to get a system prompt so that you can attempt to recover data from the system or perform corrective action that will enable the system to boot from the hard disk.

Notes:
  1. This procedure is intended only for experienced administrators who have knowledge of how to boot or recover data from a system that is unable to boot from the hard disk. Most administrators should not attempt this procedure but instead should follow local problem-reporting procedures.
  2. This procedure is not intended for administrators who have just completed a New Installation, because the system will not contain data that needs to be recovered. If you are unable to boot from the hard disk after completing a New Installation, follow your local problem-reporting procedures.

The following steps summarize the procedure for accessing a system that will not boot.

  1. Boot the system from Volume 1 of the BOS media or a bootable tape.
  2. Select Maintenance Options.
  3. Recover data or perform corrective action using the system prompt.