module.conf options

[Todd Denniston]

"P. Larry Nelson" wrote:
> 
> Well, I take it by the lack of response since my original post
> last week that this problem is solved by neither a boot time
> option nor a modules.conf option and that perhaps I am the
> first to see this bug?
> 
> Any insights from the scsi code authors would be welcome.
> 
> To recap:
>   - system boots and runs fine when attached to aic7902
>   - system (as above) will not see 2nd disk attached to aic7892a
>   - system will not boot if attached to aic7892a
> 
> It's as tho it's saying: "By golly, I was built on a fast
> controller and I'm just not going to talk to anything slower!"
> 

 From what little I know about SCSI that would not be a good device.

> Thanks!
> - Larry
> 
> P. Larry Nelson wrote:
> > At least I think this is a module.conf options question.
> >
<SNIP (including KUDZU)>
sorry, I always disable KUDZU after the second boot, and tell the machine
myself if anything changes, it keeps me sane.
> >
> > After the system is up and running, I notice that the system
> > does not see the newly attached raid, nor is there evidence
> > in /var/log/messages that it saw the U160/m at bootup.  

if we are not seeing messages in /var/log/messages it may be that the kernel
for some reason (kudzu maybe??) no longer really sees the U160m, or at least
did not load the module for the aic7892a U160/m.

Try lspci and see if the kernel sees the U160m on the pci bus.
Try lsmod and see if the aic7xxx driver (I am assuming that is the correct one
for this device) is loaded.
`cat /proc/scsi/scsi` to see if anything about your drive is known.
`ls /proc/scsi/` to see what if any scsi drivers are loaded.
if lspci sees the aic7892a but lsmod does not see aic7xxx, try
`modprobe aic7xxx`
and check /var/log/messages for any messages about your drive.
`cat /proc/scsi/scsi` to see if anything about your drive is known now.



> > Most
> > strange since kudzu says it saw it and I told it to configure it.
> > Even stranger - when I fire up the hardware browser GUI, it
> > shows the aic7892a U160/m under "SCSI Devices", but under "Hard
> > Drives", it shows only the system disk and not the attached raid.
> >
I know nothing about a hardware browser so I will suggest staying away from it
and kudzu while using my other suggestions.
<SNIP>
-- 
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane) 
Harnessing the Power of Technology for the Warfighter