DOCUMENT ID:  1125-02

SYNOPSIS:     Installing on SCSI drive of system with both IDE and SCSI

OS RELEASE:   2.1

PRODUCT:      Solaris x86

KEYWORDS:     Install SCSI drive IDE boot


DESCRIPTION:

How to install Solaris 2.1 for x86 on the SCSI drive on a system with
both IDE and SCSI drives. 

NOTE: It is more convenient to install x86 on the primary drive, which
is the IDE hard drive, on a system with both IDE and SCSI drives, since
the x86 boot manager will allow you to choose which Operating System,
DOS or Solaris for instance, to boot from during the boot process. 
However, if you must install x86 on the SCSI, for performance reasons or
else, there is no problem except you need to apply the following steps
to workaround a known bug we currently have on the Solaris 2.1 for x86. 
Please note this is fixed on releases 2.4 and above. 

The only drawback to this configuration is that, you need to either boot
from the x86 boot diskette or configure CMOS to temporarily disable IDE
hard drive (Driver C or D as 'Not Installed') to boot x86. 


SOLUTION:

Follow these steps:

1. Install x86 on the SCSI hard drive.  During installation,
   please note the IDE hard drive is referred as 'c0t0d0p0', and SCSI
   as 'c1t0d0p0'.

2. Once installation is done, reboot the system.  From the
   secondary subsystem screen, you'll notice the boot path is set
   incorrect.  It is set to the --ata@--, which is for the IDE
   controller, not the SCSI one.  It will prompt for "(b)oot or
   (i)nterpreter:"     Enter i for interpreter.

3. Then, type the following:

   > setprop boot-path /isa/aha@330,0/cmdk@0,0:a
   Then Ctrl-d to resume boot.
   Now it should boot with no further interaction.

4. Once you are logged in, edit the /etc/bootrc file, and change
   the incorrect boot-path permanently.

   setprop boot-path /isa/aha@330,0/cmdk@0,0:a

NOTE: The above boot-path is an sample example for Adaptec 154x
controller card.  You should use your own boot-path based on your SCSI
controller.  I have listed some of the sample boot-path for various
controller cards we support:

M/B   Type            Boot-path
----  ----            ---------
ISA   AHA-154x        setprop boot-path /isa/aha@330,0/cmdk@0,0:a
      with I/O base 330
EISA  AHA-154x        setprop boot-path /eisa/aha@330,0/cmdk@0,0:a
      with I/O base 330
EISA  AHA-174x        setprop boot-path /eisa/eha@4000,0/cmdk@0,0:a
      in slot 4
ISA   DPT-2011        setprop boot-path /isa/dpt@170,0/cmdk@0,0:a
      with I/O base 170
EISA  DPT-2012        setprop boot-path /eisa/dpt@2c88,0/cmdk@0,0:a
      in slot 2


DATE APPROVED: 10/10/95