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- Newsgroups: comp.sys.sgi.admin
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!saimiri.primate.wisc.edu!ames!sgi!twilight!zuni!anchor!olson
- From: olson@anchor.esd.sgi.com (Dave Olson)
- Subject: Re: passwd
- Message-ID: <tp1kv6c@zuni.esd.sgi.com>
- Sender: news@zuni.esd.sgi.com (Net News)
- Organization: Silicon Graphics, Inc. Mountain View, CA
- References: <1992Dec12.021932.16017@nuscc.nus.sg> <tms511s@zuni.esd.sgi.com> <1992Dec17.154744.12298@aio.jsc.nasa.gov> <1992Dec18.191906.9807@nb.rockwell.com>
- Date: Fri, 18 Dec 92 21:46:38 GMT
- Lines: 43
-
- In <1992Dec18.191906.9807@nb.rockwell.com> cking@zeus.muse.rockwell.com (Christopher King) writes:
-
- | In article <1992Dec17.154744.12298@aio.jsc.nasa.gov>,
- | mancus@carla.JSC.NASA.GOV (Keith Mancus/MDSSC) writes:
- | |>> If you are talking about the PROM passwd, and the system boots
- | |>> up, then you can run the command 'nvram passwd_key ""' to clear
- | |>> it, if you have an Indigo.
- | |> ^^^^^^^^^^^^^^^^^^^^^
- | |>
- | |> Does this work on 4D/20, /25, and /35's? If not, what is the
- | |>equivalent sequence for them?
- | |>
- |
- | The 4D/20's and 4D/25's that we have don't have a prom password. The sequence
- | we needed to use to 'disarm' the prom password on the 4D/35's involved
- | taking the case apart and disconnecting the battery cable from the system
- | board...which also seriously confuses all the other prom settings.
-
- Wrong fix. On the 30 and 35, it is trivial. Open the cpu side of the
- chassis (with power off). Pull the narrow ribbon cable (not the 25
- pair SCSI ribbon cable) that goes to the front panel where the nvram
- resides (actually, it is a serial EEPROM, not nvram, but lets not quibble;
- the battery has nothing to do with the nvram, by the way, it
- is only for the RTC (Real Time Clock)).
-
- Power the system on; stop in the prom monitor.
- WITH THE POWER ON, plug the narrow ribbon cable
- back in. Type 'resetenv' to the PROM monitor.
- Reset netaddr, and any other variables you care
- about.
-
- Turn the power off, close up the machine, and
- boot normally.
-
-
- With the Indigo's, this is all quite a bit harder to do,
- because the EEPROM is much harder to get to (it is on the
- backplane, behind the cpu board).
-
- --
- Let no one tell me that silence gives consent, | Dave Olson
- because whoever is silent dissents. | Silicon Graphics, Inc.
- Maria Isabel Barreno | olson@sgi.com
-