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2. Install both disks on your system

Modern systems can accept four EIDE devices on the hard disk controller, so there shouldn't be any problem installing both disks on your system at the same time, even if you also have other EIDE devices. Hard disks and CD-ROM drives are typical EIDE devices. Floppy drives and tape drives are usually connected to the floppy drive controller rather than to the hard disk controller.

SCSI adapters are even more flexible and can accept seven devices. If you're lucky (and rich) enough to have a SCSI adapter, you probably already know this, and you probably know which of your devices are SCSI devices! For more information, see the SCSI How-To.

Even the oldest systems can accept two devices on the hard disk controller, so you can still install both hard disks at the same time. However, if you already have another device installed in addition to your hard disk (for example, if you have both a hard disk and a CD-ROM drive), you'll have to remove the other device to be able to install the old hard disk and the new hard disk at the same time.

You must configure the disks as master or slave by installing the disks' jumpers as appropriate. You'll often find configuration information on the disks themselves; if not, consult the manuals or the disks' manufacturers.

You must also inform the BIOS of the disks' presence and of their geometry. Usually, you enter the BIOS setup program by pressing a key during the system boot-up. Here's what to do for some common BIOSes:

Acer notebooks

F2 key during Power-On Self-Test (POST)

American Megatrends (AMI)

Del key during Power-On Self-Test

Award

Del, or Ctrl-Alt-Esc

Compaq

F10 key after the square appears in the top right corner of the screen during boot-up

Dell

Ctrl-Alt-Enter

DTK

Esc key during Power-On Self-Test

Hewlett-Packard Pavilion

F1 key during HP blue splash screen

IBM Aptiva 535

F1 while the square with the wavy lines is displayed in the upper right corner during power-on [1]

IBM PS/2

Ctrl-Alt-Del, then Ctrl-Alt-Ins when the cursor is in the top right corner

Mr. BIOS

Ctrl-Alt-S during Power-On Self-Test

Packard Bell

For some models, F1 or F2 key during Power-On Self-Test

Phoenix

Ctrl-Alt-Esc, Ctrl-Alt-S, or Ctrl-Alt-Enter

Many older systems require an Installation or Reference Disk.

We're interested in receiving information on other BIOSes to add them to this list.

Reboot the system and login as root. If you use the su command to become the user root, use su -, with the hyphen option.

Notes

[1]

Does this also apply to other Aptiva models?