I find that I have to specify in the kernel parameters which devices use the 
diag interface. This is what I have in my zipl.conf:

parameters = "dasd=101-103(diag),104,201-204,..... (etc)

On 9/6/05, Gary Ernst <[EMAIL PROTECTED]> wrote:
> 
> Try As I might I am unable to use dasd_diag_mod (diagnose 250) across
> IPL's (NON Boot device of course). I set it on via yast - hardware dasd.
> I've checked that the module is in the initrd and that DASD_USE_DIAG is
> set to '1' in /etc/sysconfig/hardware/hwcfg-dasd-bus-ccw-xxxxxx and
> MODULE="DASD_ECKD_MOD DASD_DIAG_MOD" The devices in question have been
> cms formatted and reserved.
> 
> What Am I missing
> 
> Gary Ernst
> 
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-- 
Bruce Hayden
IBM Global Services zSeries Linux
Endicott, NY

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