Sorry for the length of this, but I am including stuff from various logs. I have a CDRW and a DVD drive on my machine. Boot messages show that both are identified correctly. Initially, I couldn't play music CDs, but I followed a couple of articles from the SuSE knowledge base & got that to work (enabled scsi emulation, etc.). But whenever I use Yast2 to install software from the CD's, it always wants me to put the CD in the DVD drive. It works fine so I guess it's not really a big deal, but I want to understand what's going on. Below are some excerpts from various logs: <4>Kernel command line: auto BOOT_IMAGE=linux ro root=342 hdc=ide-scsi <4>ide_setup: hdc=ide-scsi ......<snip> <6>Uniform Multi-Platform E-IDE driver Revision: 6.31 <4>ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx <4>SIS5513: IDE controller on PCI bus 00 dev 15 <4>SIS5513: chipset revision 208 <4>SIS5513: not 100%% native mode: will probe irqs later <4>SiS735 <4> ide0: BM-DMA at 0xff00-0xff07, BIOS settings: hda:DMA, hdb:DMA <4> ide1: BM-DMA at 0xff08-0xff0f, BIOS settings: hdc:DMA, hdd:DMA <4>hda: MAXTOR 6L080J4, ATA DISK drive <4>hdb: IC35L060AVVA07-0, ATA DISK drive <4>hdc: LITE-ON LTR-32123S, ATAPI CD/DVD-ROM drive <4>hdd: LG DVD-ROM DRD-8160B, ATAPI CD/DVD-ROM drive <4>ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 <4>ide1 at 0x170-0x177,0x376 on irq 15 <4>hda: safely enabled flush <6>hda: 156355584 sectors (80054 MB) w/1819KiB Cache, CHS=9732/255/63, UDMA(100) <4>hdb: safely enabled flush <6>hdb: 120103200 sectors (61493 MB) w/1863KiB Cache, CHS=7476/255/63, UDMA(100) <4>hdd: no flushcache support <4>hdd: ATAPI 48X DVD-ROM drive, 512kB Cache <6>Uniform CD-ROM driver Revision: 3.12 ......<snip> <6>scsi0 : SCSI host adapter emulation for IDE ATAPI devices <4> Vendor: LITE-ON Model: LTR-32123S Rev: XS0X <4> Type: CD-ROM ANSI SCSI revision: 02 <4>Attached scsi CD-ROM sr0 at scsi0, channel 0, id 0, lun 0 <4>sr0: scsi3-mmc drive: 209x/40x writer cd/rw xa/form2 cdda tray

From /var/log/messages:

Jul 19 21:00:34 clearypc1 kernel: sda : block size assumed to be 512 bytes, disk size 1GB. Jul 19 21:00:34 clearypc1 kernel: sda: I/O error: dev 08:00, sector 0 Jul 19 21:00:34 clearypc1 kernel: I/O error: dev 08:00, sector 0 Jul 19 21:00:34 clearypc1 kernel: unable to read partition table Jul 19 21:00:34 clearypc1 kernel: Device not ready. Make sure there is a disc in the drive. Jul 19 21:00:34 clearypc1 kernel: I/O error: dev 08:00, sector 0 Jul 19 21:00:34 clearypc1 kernel: Device not ready. Make sure there is a disc in the drive. Jul 19 21:00:34 clearypc1 kernel: Device not ready. Make sure there is a disc in the drive. Jul 19 21:00:34 clearypc1 kernel: VFS: Disk change detected on device sd(8,0) Jul 19 21:00:34 clearypc1 kernel: sda : READ CAPACITY failed. Jul 19 21:00:34 clearypc1 kernel: sda : status = 1, message = 00, host = 0, driver = 08 Jul 19 21:00:34 clearypc1 kernel: Current sd00:00: sns = 70 2 Jul 19 21:00:34 clearypc1 kernel: ASC=3a ASCQ= 0 Jul 19 21:00:34 clearypc1 kernel: Raw sense data:0x70 0x00 0x02 0x00 0x00 0x00 0x00 0x12 0x00 0x00 0x00 0x00 0x3a 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 .....<snip> Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 0 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 1 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 2 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 3 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 4 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 5 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 6 Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 7 Jul 19 21:07:15 clearypc1 kernel: VFS: Disk change detected on device ide1(22,0) Jul 19 21:07:15 clearypc1 kernel: ide-scsi: hdc: unsupported command in request queue (0) Jul 19 21:07:15 clearypc1 kernel: end_request: I/O error, dev 16:00 (hdc), sector 0 Jul 19 21:07:15 clearypc1 kernel: FAT: unable to read boot sector Jul 19 21:07:54 clearypc1 kernel: VFS: Disk change detected on device ide1(22,64) Jul 19 21:07:54 clearypc1 kernel: ISO 9660 Extensions: Microsoft Joliet Level 3 Jul 19 21:07:54 clearypc1 kernel: ISO 9660 Extensions: RRIP_1991A /etc/fstab: /dev/hdb2 / reiserfs defaults 1 2 /dev/cdrecorder /media/cdrecorder auto ro,noauto,user,exec 0 0 /dev/cdrom /media/cdrom auto ro,noauto,user,exec 0 0 /dev/hdb3 /data reiserfs defaults 1 2 devpts /dev/pts devpts defaults 0 0 /dev/dvd /media/dvd auto ro,noauto,user,exec 0 0 /dev/fd0 /media/floppy auto noauto,user,sync 0 0 proc /proc proc defaults 0 0 usbdevfs /proc/bus/usb usbdevfs noauto 0 0 /dev/hdb4 /storage reiserfs defaults 1 2 /dev/hda1 /windows/C ntfs ro,noauto,user,umask=022 0 0 /dev/hda5 /windows/D ntfs ro,noauto,user,umask=022 0 0 /dev/hda6 /windows/E ntfs ro,noauto,user,umask=022 0 0 /dev/hdb1 swap swap pri=42 0 0 Any ideas? Thanks, Mike ------------------------------- Cleary_Mike@emc.com ------------------------------- A wink is as good as a nod to a blind horse.