Problems mounting CDROM
Hello all,
Using Debian Sarge, and am having probs mounting my laptop's CDROM drive
- when I use the stock kernel, the CDROM is found and I can mount it
just fine but when I recompiled a new kernel today, it doesn't work -
can anyone advice please? I've recompiled the kernel on the laptop a
few times for a while, and CDROM always worked. Even rolled back to an
older kernel I compiled, but CDROM doesn't work for that either. But
when using the stock kernel, it works fine. I must have broken
something. Can anyone help?
More details:
Using 2.4.29, and stock is 2.4.26 - the main IDE controller is an Intel
PIIX4 and the secondary controller (that the floppy and CDROM drive is
plugged into) is an CMD648. When 2.4.26 boots up and loads the CMD64x
driver, it works and shows up the CDROM drive correctly and appends it
to /dev/hdc and I am able to do an "mount -t iso9660 /dev/hdc /cdrom".
When 2.4.29 boots and loads the CMD64x, it works but the CDROM isn't
shown and I get nothing at /dev/hdc and cannot mount a CDROM disc on there.
Dmesg snippet from 2.4.26:
CMD648: IDE controller on PCI bus 00 dev 88
PCI: Found IRQ 15 for device 00:11.0
CMD648: chipset revision 1
CMD648: 100% native mode on irq 15
ide1: BM-DMA at 0x1010-0x1017, BIOS settings: hdc:pio, hdd:pio
ide2: BM-DMA at 0x1018-0x101f, BIOS settings: hde:pio, hdf:pio
hda: HITACHI_DK23CA-30, ATA DISK drive
hdc: UJDA330, ATAPI CD/DVD-ROM drive
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x1128-0x112f,0x1122 on irq 15
hda: 58605120 sectors (30006 MB) w/2048KiB Cache, CHS=3876/240/63
hdc: ATAPI 24X CD-ROM CD-R/RW drive, 2048kB Cache
Uniform CD-ROM driver Revision: 3.12
ide-floppy driver 0.97.sv
Partition check:
hda: hda1 hda2 hda3 hda4
Floppy drive(s): fd0 is 1.44M
Dmesg snippet from 2.4.29:
CMD648: IDE controller at PCI slot 00:11.0
PCI: Found IRQ 15 for device 00:11.0
CMD648: chipset revision 1
CMD648: 100% native mode on irq 15
ide1: BM-DMA at 0x1010-0x1017, BIOS settings: hdc:pio, hdd:pio
ide2: BM-DMA at 0x1018-0x101f, BIOS settings: hde:pio, hdf:pio
inserting floppy driver for 2.4.29-pk-20050226-3
Floppy drive(s): fd0 is 1.44M
Any ideas anyone?
Thanks very much for your help in advance
Cheers - Piers
Reply to: