[Gllug] My computers got no nose^H^H^H^HCD drive

[John Winters]

I've just found something odd on one of my boxes.  Since I upgraded it
to a 2.6 kernel it thinks it hasn't got a CD drive.

The box is running Sarge and with a 2.4.26 kernel the CD drive works
fine.  With the 2.6.8-1-686-smp kernel the system seems to think it
isn't there.

Booting the 2.4 kernel I see:

Dec 23 15:58:29 duplo kernel: ide: Assuming 33MHz system bus speed for
PIO modes; override with idebus=xx
Dec 23 15:58:29 duplo kernel: hda: Hewlett-Packard CD-Writer Plus 9300,
ATAPI CD/DVD-ROM drive
Dec 23 15:58:29 duplo kernel: ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Dec 23 15:58:29 duplo kernel: hda: attached ide-cdrom driver.
Dec 23 15:58:29 duplo kernel: hda: ATAPI 32X CD-ROM CD-R/RW drive,
4096kB Cache
Dec 23 15:58:29 duplo kernel: Uniform CD-ROM driver Revision: 3.12

whilst with 2.6.8 I get just:

Dec 23 16:50:56 duplo kernel: ide: Assuming 33MHz system bus speed for
PIO modes; override with idebus=xx
Dec 23 16:50:56 duplo kernel: Capability LSM initialized


Both are stock Debian kernels.

Apart from the IDE CD writer the system is pure SCSI.  Two SCSI
controllers, two SCSI HDDs and two SCSI tape drives.  It boots from one
of the SCSI HDDs.

An lsmod shows:

ide_cd                 43232  0
ide_core              142524  2 piix,ide_cd
cdrom                  41148  2 sr_mod,ide_cd

but trying to access it as hda, or using cdrecord --scanbus dev=ATAPI:
both fail.

It's a fairly recent clean Sarge installation and the ide-scsi module is
*not* loaded.  I'm trying to access it purely as an IDE device.

Any suggestions for other things to check?

TIA,
John

-- 
John Winters <john at sinodun.org.uk>

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