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Dual cd drives



Hi,

I have recently acquired an IBM Intellistation Z Pro, now running 5.0. The box has two 'cd' devices, an IBM DVDRAM drive and an IBM CD-ROM drive, the problem being that only the CD-ROM is reliably found on boot, although both are invariably found by the BIOS.

I'm posting a diff from two boots of the same 5.0_STABLE kernel taken on the same hardware about half-an-hour apart:

154c154
< timecounter: Timecounter "TSC" frequency 3400267580 Hz quality 3000
---
timecounter: Timecounter "TSC" frequency 3400283220 Hz quality 3000
157c157
< auich0: measured ac97 link rate at 48006 Hz, will use 48000 Hz
---
auich0: measured ac97 link rate at 48003 Hz, will use 48000 Hz
171c171
< cd0 at atapibus0 drive 0: <HL-DT-ST DVDRAM GSA-4163B, M0059PL4345, AX13> 
cdrom removable
---
cd0 at atapibus0 drive 1: <HL-DT-ST CD-ROM GCR-8482B, , 1.06> cdrom removable
173,178c173,174
< cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 4 (Ultra/66)
< cd1 at atapibus0 drive 1: <HL-DT-ST CD-ROM GCR-8482B, , 1.06> cdrom removable
< cd1: 32-bit data port
< cd1: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
< cd0(piixide0:0:0): using PIO mode 4, Ultra-DMA mode 4 (Ultra/66) (using DMA)
< cd1(piixide0:0:1): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)
---
cd0: drive supports PIO mode 4, DMA mode 2, Ultra-DMA mode 2 (Ultra/33)
cd0(piixide0:0:1): using PIO mode 4, Ultra-DMA mode 2 (Ultra/33) (using DMA)

Any ideas how to fix this?

Thanks.

George E Sollish        Chief Engineer
                        Auto Gear Company


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