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Date:      Tue, 25 Apr 1995 12:45:18 -0500 (CDT)
From:      faulkner@mpd.tandem.com (Boyd Faulkner)
To:        rgrimes@gndrsh.aac.dev.com (Rodney W. Grimes)
Cc:        faulkner@devnull.mpd.tandem.com, current@FreeBSD.org
Subject:   Re: Problem booting SNAP floppy on PCI/I-486SP3G
Message-ID:  <9504251745.AA03681@olympus>
In-Reply-To: <199504251718.KAA10270@gndrsh.aac.dev.com> from "Rodney W. Grimes" at Apr 25, 95 10:18:07 am

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> 
> > 
> > > 
> > > > 
> > > > Rod,
> > > > My 486 PCI  Asus Box boots FreeBSD current great... but the latest snap 
> > > > boot floppy and the fixit disk do not.  Everything is cool until the PCI
> > > > is found.
> > > > 
> ...
> > > I tried all my boards here, and every one of them works.  I will bring
> > > in a PCI/I-486SP3G this week and see if I can track this down.  You
> > > mention that this works with a -current kernel, what happens if
> > > you put that kernel on floppy?  Or if you copy the floppy kernel to
> > > hard disk as /kernel.flp and try to boot it?
> > > 
> > I tried copying the boot floppy to the hard disk and it still will not boot.
> > I looked at the BOOTFLP config file in /sys/i386/conf and found this entry
> > that I do not have in CATBURG.
> > 
> > options         "SCSI_NCR_MAX_SYNC=0"   #Restrict NCR to asynch. transfers
> > 
> > Could this be it?  
> 
> Could be, but it worked here with the NCR810's on 4 different systems,
> and I am using the same disk drive you have (only more of them :-)).
> 
> Do you have anything besides the DEC3053L disk on you scsi bus now?
> You also say that a -current kernel works fine, what happens if
> you build BOOTFLP from you -current sources and try to boot it?  
> 
> (I know, lots of questions and no real answers :-().
> 
> 
> -- 
> Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
> Accurate Automation Company                   Custom computers for FreeBSD
>

>From /var/log/messages 

: ncr0: restart (scsi reset).
: ncr0 scanning for targets 0..6 (V2 pl21 95/03/21)
: ncr0 waiting for scsi devices to settle
: (ncr0:0:0): "CDC 94171-9 5955" type 0 fixed SCSI 1
: sd0(ncr0:0:0): Direct-Access 286MB (586458 512 byte sectors)
: (ncr0:1:0): "MAXTOR MXT-1240S F02S" type 0 fixed SCSI 2
: sd1(ncr0:1:0): Direct-Access
: sd1(ncr0:1:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
: 1183MB (2423457 512 byte sectors)
: (ncr0:2:0): "MAXTOR 7245-SCSI 1057" type 0 fixed SCSI 1
: sd2(ncr0:2:0): Direct-Access 234MB (479656 512 byte sectors)
: (ncr0:3:0): "NEC CD-ROM DRIVE:500 2.5" type 5 removable SCSI 2
: cd0(ncr0:3:0): CD-ROM cd present.[12571 x 2048 byte records]
: (ncr0:4:0): "ARCHIVE VIPER 150  21247 -011" type 1 removable SCSI 1
: st0(ncr0:4:0): Sequential-Access st0: Archive  Viper 150 is a known rogue
: density code 0x0,  drive empty
: (ncr0:5:0): 200ns (5 Mb/sec) offset 8.
: (ncr0:5:0): "IBM 0661467 G l" type 0 fixed SCSI 2
: sd3(ncr0:5:0): Direct-Access
: sd3(ncr0:5:0): ILLEGAL REQUEST asc:24,0 Invalid field in CDB
: sd3 could not mode sense (4). Using ficticious geometry
: 382MB (782600 512 byte sectors)
: chip1 <Intel 82378IB PCI-ISA bridge> rev 3 on pci0:2
: vga0 <Display device> rev 0 on pci0:6
: pci0: uses 8388864 bytes of memory from fb000000 upto fbfef0ff.
: pci0: uses 256 bytes of I/O space from e800 upto e8ff.

The IBM is a new acquisition and I removed all drives but the cdrom and the
tape and it still didn't work.

Could a jumper on the motherboard make a difference.  I went through them to 
make sure they made sense.  Perhaps I should again.  I don't remember if I
changed any or not.

The bios are as you sent them.  Standard but with write-through amd ISA gating
disabled.  

I am rebuilding the boot floppy now and will try it tonight.  If it fails, I will
rebuild with the 

> > options         "SCSI_NCR_MAX_SYNC=0"   #Restrict NCR to asynch. transfers

line removed and try that.

Boyd

Why the restriction?


-- 
_______________________________________________________________________

 Boyd Faulkner                                  faulkner@isd.tandem.com 
_______________________________________________________________________



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