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Basic hardware configuration

Typical device interrupts

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.


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© 2003 Caldera International, Inc. All rights reserved.
SCO OpenServer Release 5.0.7 -- 11 February 2003