Unable to access CD/DVD drive

[StumpMan]

Ok, I am still new to Linux, so be easy on me.

I installed the latest version of Knoppix to my hard drive (Debian installation). The computer can boot off of a cd/dvd just fine. But if I use the version I installed, it does not recognize the drive. The drive is set on the secondary IDE controller by itself. It is a Lite-On 812s DVD RW.

I went and modified /etc/fstab DVD setting from ISO9600 to AUTO (not bad for a former Windows guy) and still did not recognize either a dvd or cd. I even inserted the Knoppix cd, and the system will not see it.

Can you guys help me out?

System Info

Biostar M7NCD motherboard (w Nforce2)
AMD Athlon XP 2000
512 Meg Memory
ATI Radeon 9200
Creative Labs Live Value
Seagate 40gig HDD
Viewsonic USB keyboard
Logitech iFeel USB mouse
Hauppage WinTV PCI card
LiquidVideo 17' monitor

0000:00:00.0 Host bridge: nVidia Corporation nForce2 AGP (different version?) (rev c1)
Flags: bus master, 66MHz, fast devsel, latency 0
Memory at d0000000 (32-bit, prefetchable) [size=128M]
Capabilities: [40] AGP version 3.0
Capabilities: [60] #08 [2001]

0000:00:00.1 RAM memory: nVidia Corporation nForce2 Memory Controller 0 (rev c1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 1400
Flags: 66MHz, fast devsel

0000:00:00.2 RAM memory: nVidia Corporation nForce2 Memory Controller 4 (rev c1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 1400
Flags: 66MHz, fast devsel

0000:00:00.3 RAM memory: nVidia Corporation nForce2 Memory Controller 3 (rev c1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 1400
Flags: 66MHz, fast devsel

0000:00:00.4 RAM memory: nVidia Corporation nForce2 Memory Controller 2 (rev c1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 1400
Flags: 66MHz, fast devsel

0000:00:00.5 RAM memory: nVidia Corporation nForce2 Memory Controller 5 (rev c1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 1400
Flags: 66MHz, fast devsel

0000:00:01.0 ISA bridge: nVidia Corporation nForce2 ISA Bridge (rev a4)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: [48] #08 [01e1]

0000:00:01.1 SMBus: nVidia Corporation nForce2 SMBus (MCP) (rev a2)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: 66MHz, fast devsel, IRQ 12
I/O ports at e000 [size=32]
Capabilities: [44] Power Management version 2

0000:00:02.0 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4) (prog-if 10 [OHCI])
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 21
Memory at db001000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2

0000:00:02.1 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4) (prog-if 10 [OHCI])
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
Memory at db002000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2

0000:00:02.2 USB Controller: nVidia Corporation nForce2 USB Controller (rev a4) (prog-if 20 [EHCI])
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at db003000 (32-bit, non-prefetchable) [size=256]
Capabilities: [44] #0a [2080]
Capabilities: [80] Power Management version 2

0000:00:04.0 Ethernet controller: nVidia Corporation nForce2 Ethernet Controller (rev a1)
Subsystem: Biostar Microtech Int'l Corp: Unknown device 2301
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 22
Memory at db000000 (32-bit, non-prefetchable) [size=4K]
I/O ports at e400 [size=8]
Capabilities: [44] Power Management version 2

0000:00:08.0 PCI bridge: nVidia Corporation nForce2 External PCI Bridge (rev a3) (prog-if 00 [Normal decode])
Flags: bus master, 66MHz, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
I/O behind bridge: 0000c000-0000cfff
Prefetchable memory behind bridge: da000000-daffffff

0000:00:09.0 IDE interface: nVidia Corporation nForce2 IDE (rev a2) (prog-if 8a [Master SecP PriP])
Subsystem: Biostar Microtech Int'l Corp: Unknown device 3400
Flags: bus master, 66MHz, fast devsel, latency 0
I/O ports at f000 [size=16]
Capabilities: [44] Power Management version 2

0000:00:1e.0 PCI bridge: nVidia Corporation nForce2 AGP (rev c1) (prog-if 00 [Normal decode])
Flags: bus master, 66MHz, medium devsel, latency 32
Bus: primary=00, secondary=02, subordinate=02, sec-latency=32
I/O behind bridge: 0000d000-0000dfff
Memory behind bridge: d8000000-d9ffffff
Prefetchable memory behind bridge: c0000000-cfffffff

0000:01:08.0 Multimedia video controller: Brooktree Corporation Bt878 Video Capture (rev 02)
Subsystem: Hauppauge computer works Inc. WinTV Series
Flags: bus master, medium devsel, latency 32, IRQ 18
Memory at da000000 (32-bit, prefetchable) [size=4K]

0000:01:08.1 Multimedia controller: Brooktree Corporation Bt878 Audio Capture (rev 02)
Subsystem: Hauppauge computer works Inc. WinTV Series
Flags: bus master, medium devsel, latency 32, IRQ 18
Memory at da001000 (32-bit, prefetchable) [size=4K]

0000:01:0a.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 0a)
Subsystem: Creative Labs: Unknown device 8067
Flags: bus master, medium devsel, latency 32, IRQ 16
I/O ports at c000 [size=32]
Capabilities: [dc] Power Management version 1

0000:01:0a.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 0a)
Subsystem: Creative Labs Gameport Joystick
Flags: bus master, medium devsel, latency 32
I/O ports at c400 [size=8]
Capabilities: [dc] Power Management version 1

0000:02:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 SE] (rev 01) (prog-if 00 [VGA])
Subsystem: C.P. Technology Co. Ltd CN-AG92E
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 19
Memory at c0000000 (32-bit, prefetchable) [size=256M]
I/O ports at d000 [size=256]
Memory at d9000000 (32-bit, non-prefetchable) [size=64K]
Capabilities: [58] AGP version 3.0
Capabilities: [50] Power Management version 2

[StumpMan]

I rebooted, and checked the system devices and noticed this

NFORCE2: 0000:00:09.0 (rev a2) UDMA133 controller
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hdaMA, hdbMA
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdcMA, hddMA
Probing IDE interface ide0...
hda: ST340014A, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: LITE-ON DVDRW SOHW-812S, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
Probing IDE interface ide2...
Probing IDE interface ide3...
Probing IDE interface ide4...
Probing IDE interface ide5...
hda: max request size: 1024KiB
hda: 78165360 sectors (40020 MB) w/2048KiB Cache, CHS=16383/255/63
hda: cache flushes supported
hda: hda1 hda2 hda3 < hda5 >
ide-cd: passing drive hdc to ide-scsi emulation.

The system sees the DVD drive on IDE1 (hdc).

How can I configure this to recognize the DVD/CD drive?
Do I need to do this in fstab?

[yosef]

what version are you using?
By means of the #knoppix irc channel, I was informed that as of 3.8.1 scsi emulation is no longer needed, and in fact prevents drives from mounting.
To fix this problem I had to remove all the lines in the stanzas of /etc/lilo.conf that created scsi emulation, such as scsi=hda scsi=hdb etc.
This fixed the problem for me. Just remember to run 'lilo' after editing lilo.conf to commit the changes.