DANGER!!! Problems with 10.04 installer (RAID devices *will* get corrupted)

Alvin Thompson alvin at thompsonlogic.com
Thu Apr 22 17:04:53 UTC 2010

On 04/22/2010 12:14 PM, Dave Howorth wrote:
> You didn't think about what I wrote. The LVM is irrelevant. What I'm
> saying is that my issue was caused by grub and I think there's a
> possibility that #191119 is too. OTOH, I don't think it seems like your
> problem is and it therefore seems a sensible precaution to leave the two
> bug reports in place for separate investigation.

IIRC, grub only writes to the first few kilobytes of your drive, which 
is not in any partition or data area, so that is very unlikely to be the 
problem unless you're using an extremely old version of GRUB 1 which 
can't handle large drives.

> Until at least one of the problems is bottomed out so both the cause is
> known (specific lines of code) and a fix is in place, nobody can be
> absolutely sure they are the same bug.

I have already given steps on reproducing the problem.  Once the problem 
is there, it stays there no matter how many times you try to install. 
The only way to stop the problem once it's there is to physically zero 
out any left over file systems on the disk.  This shows that it indeed a 
problem with the left over file system.  It also proves that it's not a 
GRUB problem because if it were, the problem would continue because all 
you did was zero out a file system which no longer existed in the first 
place.  I'll cut you some slack on this one, because I didn't mention in 
my previous posts how I fixed the problem.

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