From: julian@tfs.com (Julian Elischer)
Subject: Re: [386BSD] EISA 486/33 with Adaptec 1742A - The story ...
Keywords: EISA 1742A
Organization: TRW Financial Systems
Date: Mon, 28 Sep 1992 19:24:18 GMT

OK, 'horses-mouth time" 8-)

In article <1992Sep28.110340.24460@autelca.ascom.ch> nbladt@autelca.ascom.ch (Norbert Bladt) writes:
>I am "using" 386BSD since some weeks.
>I have a standard 486/25 Mhz ISA system with the Adaptec 1542B at work (is
>working well) and a 486/33 Mhz EISA system with Adaptec 1742A (in 1542B mode)
>at home (has some troubles getting started).
>
>I am using the new scsi-drivers from Julian Elischer (thanks to you
>for your work, Julian).

Well we're still pulling bugs out as you see.!

>This is what I have accomplished so far (all real work like compiling the kernel
>sources, creating new boot floppies, etc. was done on the ISA 1542B system):
>
>I build a new kernel with the new scsi-drivers.
>I created new dist.fs and fixit.fs floppies.
>This all works on the ISA system with 1542B.
>After booting the new kernel on my EISA system, my harddrive and even the
>Archive 150 MB SCSI streamer are detected by 386BSD, now.

>Then I switched to the new boot-blocks (with use of BIOS), again from Julian
>(thanks again). Now I could boot from the harddisk but it overwrote my DOS
>partition table. It seems to me that I can't have a MS-DOS partition
>with the new boot-blocks.
>

I do it all the time, are they the newest set (about a week old now)?
do you have a 386bsd partition ready for them to use?
It sounds as if they are being installed at location 0 on the disk
when they should be at the front of the BSD part of the disk.

>If I somehow install 386BSD (EISA system) on my harddisk and I boot from the
>floppy I can use both, the harddisk and the streamer. Although, after a while
>the system hangs with "aha0: timed out" and I have to reboot. At least,

Yes, it appears there is a bug in the 1740 under 1542 mode.
never fear, I have started on the 1740 extended mode driver.
I hope to have a working one by next weekend.

>I can use my harddisk now.
>But, I want to boot from the harddisk, finally.
>
As I say, you should be able to. It's being installed wrongly
some-how.

>I will take the disk which is now connected to the ISA 1542B system
>home and try to use it. If it boots at home, I will take the disk
>I have at home now and install the system on the ISA 1542B system.
>Then I can use this disk with my EISA 1742A system.
>
>But, that is not a real "solution" to my problem. I can imagine
>getting problems if I try to build new kernels, etc. at home.
>
>Now, is there anybody who is running 386BSD (i.e. installed it
>successfully) on an EISA system like mine, i.e. with SCSI controller ?

I am running EISA with a bustek 742a controller. (the driver was 
posted yesterday (or was it Saturday?)

>
>Norbert Bladt.
>
>BTW: I tried both versions of the disktab entry for my drive.
>One with geometry translation and one without. No difference.
>I am using the Fujitsu 2624SA drive which has more sectors per track
>on the outer cylinders than on the inner ones. Although, the
>"SCSI sense" reports: 64 sectors/track, 11 heads, 512 bytes/sector
>and 1429 cylinders ! I guess this means, that the drive is doing
>translation somehow ! Do the 386BSD drivers have to care about this ?

The drive reports back, #cylinders, total capacity and # heads.
From this I synthesise the number of sectors per track
sort of an "Average" value.


>-- 
>Norbert Bladt, Ascom Autelca AG, Worbstr. 201, CH-3073 Guemligen, Switzerland
>Phone: +41 31 999 65 52			FAX: +41 31 999 65 44
>Mail: nbladt@autelca.ascom.ch   UUCP: ..!uunet!mcsun!chsun!hslrswi!aut!nbladt


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