Bug#582342: Godel and inconsistency; never will know...; system with RAID and CRYPTO

cropper at acm.org cropper at acm.org
Wed Jul 7 03:12:53 UTC 2010


The problem with grub and my system abruptly disappeared; for whatever reason 
it has something to do with the MPTSAS driver, the SATA_NV driver, or the bios 
on my system.  Tinkering with my sata DVD writers vanquished the problem!

I would be more confused but I have had experiences like this with computers 
over the years and have studied Godel's incompleteness theorems and the 
halting problem.

Summary:

Two internal DVD writers were connected to SAS phy port 6 and port 7 (I have 
three dvd writers and six hard drives).  Attempted to read a DVD disc.  
Neither writers read the inserted disc very well (driver complains about "bad 
sectors" and other stuff).  Attempt to read disc from 1394a connected DVD 
writer; disc reads flawlessly.

Turn off computer.  Connected DVD writers to __SATA ports 0 and 1__ on 
motherboard.  Leave hard drives connected to SAS ports 0 through 5.  Turn on 
computer.  __Re-enable previously-disabled SATA channel 0/1 in the bios__ and 
indicate that computer should boot from SAS hard drive 0 and save settings.  
Reboot.

Computer POSTs.  Grub menu appears.  Select "2.6.32-5-amd64" and voila... the 
machine boots without a problem.  Grub bug # 582342 seems to be no more...!?!



Any further questions or comments?  Otherwise, I will be bidding adieu.


C. Cropper





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