7.6.1 What to Do

Perform this procedure with the power on and the keyswitch in the Power-On/Off position.

1. With the keyswitch in the Power-On/Off position, press the Break key on your alphanumeric terminal keyboard, or enter the Stop-a sequence on a Sun keyboard.

   To enter the Stop-a sequence, press the Stop key and the a key simultaneously. The ok prompt is displayed.

2. (Optional) Select a diagnostic level.

   Three different levels of diagnostic testing are available for OBDiag; see "7.7 How to Set the Diagnostic Level for POST and OBDiag".

3. At the ok prompt type:

   ok setenv diag-switch? true diag-switch? = true

4. At the ok prompt, type:

   ok obdiag

   The OBDiag menu is displayed.

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   Note -

   The OBDiag menu is built dynamically each time you run the obdiag command. The exact number and order of menu items in the example might not match the menu items on your system.

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   OBDiag Menu 0 ..... PCI/Cheerio 1 ..... EBUS DMA/TCR Registers 2 ..... Ethernet 3 ..... Keyboard 4 ..... Mouse 5 ..... Parallel Port 6 ..... Serial Port A 7 ..... Serial Port B 8 ..... NVRAM 9 ..... Audio 10 ..... SCSI 11 ..... All Above 12 ..... Quit 13 ..... Display this Menu 14 ..... Toggle script-debug 15 ..... Enable External Loopback Tests 16 ..... Disable External Loopback Tests Enter (0-11 tests, 12 -Quit, 13 -Menu) ===>

5. At the OBDiag menu prompt, type 14 to select toggle script-debug.

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   Note -

   Selecting toggle script-debug enables verbose test message displays.

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6. At the Enter prompt, type the appropriate test number.