Hi,

I have got a problem with my Adaptec 2940UW SCSI card and Slackware 10. I
have got 3 SCSI HD`s (32gb = /SBIN, /USR, 4gb = /SWAP and 16gb = / ) and
they are setup correctly, terminated and formated using the required
filesystem. I have got a futhur 2 IDE HD`s as /HOME & /BACKUP.


I am about to install Slackware 10 again as i have got major problems with
my bootup sequence on the Adaptec 2940UW controller. Where should i install
LILO on the /MBR ? as i don`t want to install anything on the IDE hard
drives. Can i install the MBR on the SCSI disk and get it to bootup from
that ?


Any help is appreciated

Floss.

Flossie wrote:
> Hi,
>
> I have got a problem with my Adaptec 2940UW SCSI card and Slackware 10. I
> have got 3 SCSI HD`s (32gb = /SBIN, /USR, 4gb = /SWAP and 16gb = / ) and
> they are setup correctly, terminated and formated using the required
> filesystem. I have got a futhur 2 IDE HD`s as /HOME & /BACKUP.
>
>
> I am about to install Slackware 10 again as i have got major problems with
> my bootup sequence on the Adaptec 2940UW controller. Where should i install
> LILO on the /MBR ? as i don`t want to install anything on the IDE hard
> drives. Can i install the MBR on the SCSI disk and get it to bootup from
> that ?
>
>
> Any help is appreciated
>
> Floss.
>
>

All depending on your bios (settings).
If you (can) set it up to boot from scsi, you could use the mbr of
/dev/sda, if not you should stick to /dev/hda.

Michel.

"dillinger" <dillinger@invalid.not> wrote in message
news:43d3862e$0$12837$ba620dc5@text.nova.planet.nl ...
> Flossie wrote:
> > Hi,
> >
> > I have got a problem with my Adaptec 2940UW SCSI card and Slackware 10.
I
> > have got 3 SCSI HD`s (32gb = /SBIN, /USR, 4gb = /SWAP and 16gb = / ) and
> > they are setup correctly, terminated and formated using the required
> > filesystem. I have got a futhur 2 IDE HD`s as /HOME & /BACKUP.
> >
> >
> > I am about to install Slackware 10 again as i have got major problems
with
> > my bootup sequence on the Adaptec 2940UW controller. Where should i
install
> > LILO on the /MBR ? as i don`t want to install anything on the IDE hard
> > drives. Can i install the MBR on the SCSI disk and get it to bootup from
> > that ?
> >
> >
> > Any help is appreciated
> >
> > Floss.
> >
> >
>
> All depending on your bios (settings).
> If you (can) set it up to boot from scsi, you could use the mbr of
> /dev/sda, if not you should stick to /dev/hda.
>
> Michel.

Thanks for the help. I am using a ASUS K7V motherboard. I had previously set
it up to boot from SCSI but it will not.

On 2006-01-22, Flossie <guessme@hi-v.com> wrote:
>> All depending on your bios (settings).
>> If you (can) set it up to boot from scsi, you could use the mbr of
>> /dev/sda, if not you should stick to /dev/hda.
>
> Thanks for the help. I am using a ASUS K7V motherboard. I had previously set
> it up to boot from SCSI but it will not.
If your Scsi card itself doesn't have a ROM on it, it
wouldn't matter anyway. My AHA2930CU-MAC is as good as romless as it
has a Power-PC rom chip. Looking to get a new Intel bootable card
soon. such as a AHA2940U2W.

--

From the Desk of the Sysop of:
Planet Maca's Opus, a Free open BBS system. Not yet back online
The New Cnews maintainer
B'ichela

Flossie <guessme@hi-v.com> wrote:
> I am about to install Slackware 10 again as i have got major problems with
> my bootup sequence on the Adaptec 2940UW controller. Where should i install
> LILO on the /MBR ?

Only if your SCSI adaptor (the 2940) has been setup TO allow the scsi
disk(s) to be bootable (normal BIOS cannot handle them and lilo relies
on the BIOS to find ITS code (and to load the kernel itself).

> as i don`t want to install anything on the IDE hard
> drives. Can i install the MBR on the SCSI disk and get it to bootup
> from that ?

Mostly the controller has to be setup in "ide-compatible mode" for
scsi disks to be bootable at all.
But it purely is a bios-addon question, as that (the addictional bios
on the SCSI adapter) has to do most of the work (until the kernel has
been loaded).

And - of course - in linux itself you need the adaptec.s kernel, OR
one in which "aic7xxx" has been BUILT-in, not as a module, otherwise
the kernel cannot load its own modules.

The other trick, if you cannot get your disks to boot, is to put the
kernel itself on one of the IDE disks (as a normal file) and to use
"loadlin" to load it. This is a bit tricky as the kernel needs to
know what its root will be.
On a very old system, this is what I used (in the config.sys, that
was a pure DOS system, 486dx2/66):
[Linux]
Dos=High
Device=C:\DOS\HIMEM.SYS /testmem:OFF
Shell=C:\UNIX\LOADLIN.EXE C:\unix\vmlinuz root=/dev/hda4 ro
but I don't know if that is still possible with the current size of
kernels (loadlin as a DOS program has only 640 KB to work in, that's
why the Dos=High and loading of Himem, to free as much memory as possible).
--
************************************************** ******************
** Eef Hartman, Delft University of Technology, dept. EWI/TW **
** e-mail: E.J.M.Hartman@math.tudelft.nl, fax: +31-15-278 7295 **
** snail-mail: P.O. Box 5031, 2600 GA Delft, The Netherlands **
************************************************** ******************

dillinger <dillinger@invalid.not> wrote:
> All depending on your bios (settings).
> If you (can) set it up to boot from scsi, you could use the mbr of
> /dev/sda, if not you should stick to /dev/hda.

Even that won't work, cause lilo also needs BIOS access to the hard
disk to load the kernel itself.
Only after that the kernel can take over for the rest of the boot.
--
************************************************** ******************
** Eef Hartman, Delft University of Technology, dept. EWI/TW **
** e-mail: E.J.M.Hartman@math.tudelft.nl, fax: +31-15-278 7295 **
** snail-mail: P.O. Box 5031, 2600 GA Delft, The Netherlands **
************************************************** ******************

Eef Hartman wrote:
> dillinger <dillinger@invalid.not> wrote:
>
>>All depending on your bios (settings).
>>If you (can) set it up to boot from scsi, you could use the mbr of
>>/dev/sda, if not you should stick to /dev/hda.
>
>
> Even that won't work, cause lilo also needs BIOS access to the hard
> disk to load the kernel itself.
> Only after that the kernel can take over for the rest of the boot.

You're right, I assumed the 2940UW has an onboard bios, it has not,
there's no way to boot from that.

Michel.

On 2006-01-23, dillinger <dillinger@invalid.not> wrote:
> You're right, I assumed the 2940UW has an onboard bios, it has not,
> there's no way to boot from that.
In that case you will need to have a tiny IDE drive with the
/boot partition on it. On my firewall the drive is a tiny 540MB unit.
It just is used to get linux up. then it mounts the / which is on
/dev/sda1 (remember my AHA-2930CU-MAC doesn't have a Intel compatible
bios chip.) Its a kludge but it is workable. Hoping to get a SCSI
card with a working bios chip for my newer computers

--

From the Desk of the Sysop of:
Planet Maca's Opus, a Free open BBS system. Not yet back online
The New Cnews maintainer
B'ichela

**
I have an older K6III 400 that boots just fine from an Adaptec 2940uw
card .

Set computer bios to boot from SCSI, then go into SCSI BIOS <ctrl & A>
to designate
which SCSI device number actually boots.

Walt R.
**

<wmreinemer@tns.net> wrote in message
news:1138054880.054909.92320@g14g2000cwa.googlegro ups.com...
> **
> I have an older K6III 400 that boots just fine from an Adaptec 2940uw
> card .
>
> Set computer bios to boot from SCSI, then go into SCSI BIOS <ctrl & A>
> to designate
> which SCSI device number actually boots.
>
> Walt R.
> **
>

Have done this but it refuses to bootup linux.