Roger Leigh rleigh at codelibre.net
Mon Nov 17 00:18:32 UTC 2014

On Sun, Nov 16, 2014 at 06:11:46PM -0500, Michael Jung wrote:
> Roger,
> I downgraded several different controllers on two different motherboards and 
> the procedure was the same other than on a SuperMicro motherboard I 
> used the .efi version of the sas2flsh binary and the on the other motherboards 
> used the regular MSDOS sas2flsh binary under FreeDOS booted from USB.
> In both cases I used the sasl2flsh binary that came with the P20 firmware but
> used the .bin and .rom files from the P19 zip file.  Using the P20 sasl2flsh 
> binary may be difference. I did not try the P19 binary to downgrade.
> From my notes to downgrade I simply:
> sas2flsh -o -e6
> sas2flsh -f <P19-file>.bin -b <p19-file>.rom

Thanks, I was missing the flash erase step because it seemed
unnecessarily scary!  The downgrade then worked just fine.

After rebooting into FreeBSD I can confirm repeating the
"diskinfo -t" tests that all the errors have now gone.  I'll
do some more extensive testing tomorrow, but it looks like
this has solved the problem.  Should be ready to put into use
as discs for ZIL, L2ARC and the base system.

Thank you very much for your help, which was very much appreciated!

Kind regards,

  .''`.  Roger Leigh
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