SCO OpenServer

Installing the Mylex Disk Array Controller as the Primary Controller

This section provides guidelines for the system administrator to follow during the installation of SCO UNIX to prepare it for using the Mylex Disk Array Controller (DAC) as the primary controller. The following guidelines will focus mainly on the important steps for installing the SCO UNIX drivers. For detailed information about the operating system installation, consult the SCO UNIX documentation.

If a tape drive connected to the controller is being used for installation, make sure that the tape drive is set to SCSI ID 2, that the configuration utility has been run with the tape drive installed, and that the configuration has been saved. The same is also true when using a CD-ROM, except the CD-ROM needs to be set to SCSI ID 5.

Prepare the system to receive the SCO OpenServer 5.0.x driver by performing the following procedure:

1.Insert the OpenServer Boot Disk into the primary floppy and boot the system. The following prompt will be displayed:

Boot

:

2. Type ahslink at the colon(:) and press <Enter>.

:ahslink

When running SCO 5.0.x on a system with an additional SCSI controller, to install the controller at the boot prompt, enter:

Boot: defbootstr ahslink=mdac Sdsk=mdac(0,0,0,1)

If installing onto a system that is SISL capable and using a SISL capable DAC, it is recommended to disable the SCSI chip driver on the system by entering the following at the boot prompt:

Boot: defbootstr ahslink=mdac Sdsk=mdac(0,0,0,1)

disable=[scsi chip driver name]

3. The system will display the following message

What packages do you need linked in the system, or q to quit?:

5S

C

O

Manual No. 775079

5-3