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One of the most common causes of problems both during and after installation is a device interrupt conflict. Make sure device interrupts do not conflict and do not use the reserved interrupts indicated in ``Typical device interrupts'' or your system will probably fail to boot.
Typical device interrupts
| Interrupt | Octal | Device | |
|---|---|---|---|
|
0
| 0 | Clock | |
|
1
| 1 | Console | |
| 2 | 2 | Networks, tapes and others | |
| 3 | 3 | Serial COM2 | |
| 4 | 4 | Serial COM1 | |
| 5 | 5 | Alternate parallel port (lp2) | |
|
6
| 6 | Floppy disk | |
| 7 | 7 | Main parallel port (lp0 or lp1) | |
|
9
| 11 | Chain from IRQ2 | |
| 10 | 12 | ||
|
11
| 13 | SCSI host adapter 0 | |
| 12 | 14 | SCSI host adapter 1 | |
|
13
| 15 | FPU | |
|
14
| 16 | ST506/ESDI/IDE controller 0 | |
| 15 | 17 | ST506/ESDI/IDE controller 1 |
Do not attempt to use these interrupts for any other purpose.