READ_BIG timed out installing 5.4-BETA1 on Blade-100

[David O'Brien]

On Fri, Mar 25, 2005 at 09:04:35AM +0100, Michiel Boland wrote:
> Hi. I was trying to install 5.4-BETA1 on a Blade-100 off cdrom using a 
> serial console. Unfortunately the install does not get past the initial 
> kernel initialization. It hangs with the messages
> acd0: TIMEOUT - READ_BIG retrying (2 retries left)
> acd0: FAILURE - READ_BIG timed out
> repeated ad infinitum.
> 
> I have tried putting the cdrom drive on another channel, but identical 
> results. Note that I tossed out the drive that originally came with the 
> Blade, because that could not read any ceedees at all.

Sun seem to have tweaked the firmware on the CDROM drive they put into
the Sun Blade 100's.  You can most likely install by issuing

    hw.ata.atapi_dma=0

at the loader "OK" prompt (stop the default count-down).
PLEASE let me know if this works for you.

-- 
-- David  (obrien at FreeBSD.org)