DEC Alpha Bug Check Crash

Jon Elson elson at
Mon Nov 12 11:22:40 CST 2018

On 11/11/2018 11:36 PM, Douglas Taylor via cctalk wrote:
> This is most likely correct.  I re-installed the OS on a 
> different SD card/SCSI2SD device and got a successful 
> graphics boot up.  Do SD cards drop bits or go bad?
UGH!  Yes, they can.  It SHOULD cause a device parity error, 
but I guess some of their coverage is less than 100% 
perfect.  But, there are LOTS of reports of bad SD cards, 
cards with dramatically less capacity than stated on the 
outside, early failure after just a few hundred writes, lots 
of reports of total corruption when power is dropped without 
warning, etc.  Just read the horror stories online.


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