| Xenix -
Unix I.P.B. 3162
|
17th January 1994 (JE) |
| Department |
Category |
Implementation |
|
| Unix |
Hardware |
Advisory |
|
Software |
|
SCO Unix tape install on FT//ex with SCSI
disk and tape
SCO Unix 3.2v4.2 has been installed onto a SCSI root disk from SCSI tape
using the on board dual port SCSI adapter (Adaptec AIC-7770) by configuring the system as
below. It is suggested that this configuration is verified before an installation is
attempted.
Full configuration is achieved by changing settings in two areas, one
being the ROM BIOS setup (<CNTRL><ALT><ESC> during boot up), and the
other being the use of the EISA Configuration Utility floppy.
See the section at the end of this IPB for configuration changes from
these that are required for a Specialix card.
ROM BIOS Setup
- Select "System Configuration"
- Select "Advanced Configuration" and set the options as
follows:-
Shadow RAM
|
F0000 - FFFFF (System BIOS) |
Enabled |
|
C0000 - C7FFF (Video BIOS) |
Enabled |
|
C8000 - CFFFF |
Enabled |
|
D0000 - D7FFF |
Enabled |
|
D8000 - DFFFF |
Enabled |
|
E0000 - EFFFF |
Enabled |
|
Internal Cache (CPU Cache) |
Enabled |
|
System Cache (External Cache) |
Enabled |
|
Cache Scheme |
Write Back |
|
Cache Burst Read Write State |
2-2-2-2 |
|
Cache Write Cycle Insert Wait |
Disabled |
|
F0000 - FFFFF (System BIOS) |
Cacheable |
|
C0000 - C7FFF (Video BIOS) |
Cacheable |
|
Use the <PageDown> key
|
Hidden Refresh |
Enabled |
|
CPU-DRAM Read Cycle Insert Wait |
Disabled |
|
CPU-DRAM Write Cycle Insert Wait |
Disabled |
|
SCSI I/O ROM Mapping |
0D800 |
EISA Configuration Utility floppy
- Boot system from the floppy
- Select "Configure Computer"
- Select "Configure Computer - advanced method"
- After several pauses while configuration files are loaded, select Slot 9
- Adaptec AIC-7770 SCSI Host Adapter.
- From within the Adaptec AIC-7770 menu entered in step 4 above, set the
following options:-
| Host Adapter Interface Definitions |
|
Interrupt Level |
IRQ 11 |
|
Bus Release Time |
60 BCLKS |
|
Data FIFO Threshold |
100% |
|
| SCSI Channel A Configuration |
|
Host Adapter SCSI ID |
7 |
|
SCSI Bus Parity Check |
Enabled |
|
SCSI Selection Timeout |
256 milliseconds |
|
SCS Bus Reset at Power-on |
Enabled |
|
| SCSI Channel B Configuration |
|
| . Same as Channel A |
|
|
|
| Primary Channel Selection |
A |
|
| Note: The "Primary Channel Selection" option may
not appear. |
|
- Select "BIOS and Device Configuration" by pressing
<RETURN>.
- Select "BIOS Configuration" and set the options as below:-
| Support Removable Disks as Fixed Disk |
All Devices |
| Extended Translation for Drives > 1GByte |
Disabled |
| Support more than two drives |
Enabled |
- Press ESC twice to return to the main menu that shows the slot numbers.
- Press <ALT><ESC> to select the "System" drop down
menu.
- Select "Exit"
- Select "Save configuration and exit" and follow to prompts to
exit the configuration utility.
As with other Adaptec SCSI based systems the root disk should be set to
ID 0 and the tape unit to ID 2.
Channel A of the Adaptec AIC-7770 is the top 50 way dual-in-line
connector located at the top right hand side of the mother board.
Reboot the machine from the SCO N1 floppy and at the boot prompt enter
"link". You wil then be asked for the name of the Boot Time Loadable Driver
required - the name is "arad". The floppy containing the driver is labelled
"AIC-7770 SCSI Utilities BTLD Driver for SCO UNIX" and the current version is
1.0L.
Specialix card
As with the XEN-LS II and XEN-PC Specialix configuration covered in IPB 3140, the card cannot use a RAM area that is cached. Therefore
set the card's switches and link to SW1=0, SW2=D, LINK 1=0 (this to set the shared RAM
address range to D0000-D7FFF), and disable the caching of this 32k RAM area by setting the
"D0000 - D7FFF" option under the "Shadow RAM" section of the ROM BIOS
Setup to "Disabled".
When installing the Specialix driver from custom, select the Use the
card in polled mode by selecting this option from the Specialix custom installation
utility.
----------oOo----------
|
