Informationen zum Bootprom-Update

[maal]

Hallo,

wegen der Probleme, die jemand mit einer neuen OBP-Version auf seiner Ultra 1 hatte bin ich nochmal meine archivierten News-Beiträge durchgegangen.

Dabei ist mir ein Beitrag zu diesem Thema aufgefallen.

Der Beitag ist in englisch, ich habe lediglich die eMail-Adresse des Fragenen entfernt.

Von: "Casper H.S. Dik" <Casper.Dik@Sun.COM>
Betreff: Re: System Hang before OBP on Ultra 30
Datum: Freitag, 16. Januar 2004 13:12

Keith Kris writes:

>Great idea.  I tried that the first time though, and I saw no failures
>before the hang.  Now I'm wondering if it's the NVRAM, as I tried
>high-half booting the system, and it didn't even begin to boot.

high-half booting would attempt to boot from POST; that never
works.  It's only useful if you encounter a failure during
flashing.

The prom is divided in two parts: one for OBP and one for POST.

Flashing goes through the following sequence:


    Clear high-half (POST)
    Flash high-half with OBP
-- start ability to boot from high half
    Clear low-half
- can no longer boot with standard setting
    Flash low-half with OBP
- can boot again from low-half
    Clear high-half
-- end of ability to boot from high half
    Flash high-half with POST

Have you tried keepign down L1-N (Stop-N) while
powering the system up?

Casper
--
Expressed in this posting are my opinions.  They are in no way related to opinions held by my employer, Sun Microsystems.
Statements on Sun products included here are not gospel and may be fiction rather than truth.