IWILL BS100 (AIC7895) don't boot.

[Jose L. Fernandez Jambrina]

Thanks very much for your help,

	I think that my SCSI buses are properly terminated: They work fine over
Windows and ...

	Taking some ideas from the mail from Patrick Keys:

 I had success to boot the system from a 2.0.34 kernel diskette (build
from the 2.0.34 kernel, taken from Debian 2.1r3)
 I was unable to boot the system from a 2.0.36 kernel diskette (build
from the 2.0.34 kernel, taken from Debian 2.1r3)
 I had success to boot from a custom 2.2.1 kernel diskette.

	So I think the problems could arrive from a badly kernel setup or from
changes made on the driver.

	I will use 2.0.34 kernel and I will wait for further help.

	Yours,

	José L. 

"Robert W. Rowe" escribió:
> 
> You didn't say whether you had a terminator installed, or if your last SCSI
> device was properly terminated. You need the end of the SCSI chain terminated.
> 
> This controller is very touchy, in my experience. It requires a
> high-quality cable, clean connectors of good quality, and good, working
> active terminator or proper termination set on the last device in your SCSI
> chain. This is usually done with jumpers.
> 
> I didn't have much success also until I separated narrow and wide SCSI
> devices, putting them on different channels. The narrow devices, a Zip
> drive and a SCSI CD-R drive, are on channel B together, with the CD-R drive
> terminating the channel. The two wide SCSI disks are on the A channel; the
> second of two disks is terminated.
> 
> When I disconnect the external SCSI Zip drive, I replace its connector with
> an active terminator.
> 
> At 09:37 PM 10/28/99 +0200, Jose L. Fernandez Jambrina wrote:
> >Dear sirs,
> >
> >         Today I have received my new PC equiped with an IWILL BS100
> > motherboard
> >with a built-in Adaptec 7895 dual scsi controler, and and ultrawide scsi
> >disk.
> >
> >1. The computer has Windows98 preinstaled, so I boot it for a fasta
> >check. All rigth.
> >
> >2. I tried to boot from the Debian rescue/boot diskette. The kernel
> >(version 2.0.36) issue a message complaining about a scsi terminator,
> >and it frezze.
> >
> >3. After playing with the setup the message disapear, but the computer
> >din't boot. The last line was:
> >(scsi1) Downloading sequencer code...394 instructions loaded
> >
> >4. I read the 'README.aic7xxx' and tried to boot with the kernel command
> >'aic7xxx=verbose,0x1ffff' and I have and screen full of extra lines, but
> >after the mentioned in 3., I have two extra lines
> >(scsi1) Resetting channel B
> >(scsi1:-1:-1:-1= Signaled a PCI Target Abort.
> >
> >The last line takes several seconds to appear.
> >
> >5. I reconfigured the system changing the drive from and scsi port to
> >the other, using another disk, using no disks, ... but nothing new.
> >
> >Please, Help!!!, if it is posible.
> >
> >
> >         Thanks in advance.
> >
> >         José,
> >
> >
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> 
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