The consensus was that this is a hardware failure.
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Original posting
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> After a failed attempt to boot from a Redhat Alpha 7.0 installation cdrom
> on an Alpha Personal Workstation 433 the cdrom is no longer
> operational. Although I can see the device at the console prompt, when
> attempting to boot from it I get a messages saying "no media present or is
> disabled via the RUN/STOP switch." If I boot Tru64 from disk and then try
> to mount the cdrom I get an i/o error. Is this just a weird coincidence
> that the failure occured during an attempt to install Linux? Does this
> mean the cdrom is dead? How can I re-enable the device?
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Response from Dr. Tom Blinn
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Probably a weird coincidence. Power cycle the system. If you STILL can't
get the CDROM drive to work, it's probably dead. It's REMOTELY possible
that the RedHat install software did something to the CDROM drive's own
firmware, but VERY unlikely. However, the SRM console wants to access
the CDROM drive in 512 byte mode, and if it's a SCSI CDROM drive, it's
supposed to be able to do that mode, and maybe it's just not accepting
the appropriate commands because it's in some wedged state; a full power
cycle will often fix stuck firmware.
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From Shane Southwood
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It means one of 2 things. either:
1.) You've burned a bad cd (if you made it yourself)
or
2.) Your CD-ROM has flaked out on you. Cleaning may help this, but will
just prolong your misery. CD drives are pretty cheap even when they're
SCSI, so its no biggie.
It is however a big coincidence that the drive died during a linux
installation.
Robert Kubarych
UNIX High Performance Server Specialist
PKA Technologies, Inc.
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Wayne Gretzky
Received on Mon Jul 09 2001 - 12:57:39 NZST