This is what comes up
Usage: dmesg [-c] [-n level] [-s bufsize]
dmesg | grep hd
Kernel command line: ro root=LABEL=/ hdc=ide-scsi
ide_setup: hdc=ide-scsi
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda

MA, hdb

MA
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc

MA, hdd

io
hda: ST340810A, ATA DISK drive
hdb: Maxtor 4D040H2, ATA DISK drive
hdc: LITE-ON LTR-24102B, ATAPI CD/DVD-ROM drive
hdd: TOSHIBA DVD-ROM SD-R1002, ATAPI CD/DVD-ROM drive
hda: attached ide-disk driver.
hda: host protected area => 1
hda: 80022600 sectors (40972 MB) w/2048KiB Cache, CHS=4981/255/63, UDMA(66)
hdb: attached ide-disk driver.
hdb: host protected area => 1
hdb: 80043264 sectors (40982 MB) w/2048KiB Cache, CHS=4982/255/63, UDMA(66)
hda: hda1
hdb: hdb1 hdb2 hdb3
hdd: attached ide-cdrom driver.
hdd: packet command error: status=0x59 { DriveReady SeekComplete DataRequest Err
or }
hdd: packet command error: error=0x00
hdd: status error: status=0x59 { DriveReady SeekComplete DataRequest Error }
hdd: status error: error=0x00
hdd: drive not ready for command
hdd: status error: status=0x59 { DriveReady SeekComplete DataRequest Error }
hdd: status error: error=0x00
hdd: drive not ready for command
hdd: status error: status=0x59 { DriveReady SeekComplete DataRequest Error }
hdd: status error: error=0x00
hdd: drive not ready for command
hdd: request sense failure: status=0x51 { DriveReady SeekComplete Error }
hdd: request sense failure: error=0x04Aborted Command
hdd: lost interrupt
hdd: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdd: packet command error: error=0x00
hdd: lost interrupt
hdd: request sense failure: status=0x51 { DriveReady SeekComplete Error }
hdd: request sense failure: error=0x00
hdd: lost interrupt
hdd: packet command error: status=0x51 { DriveReady SeekComplete Error }
hdd: packet command error: error=0x00
hdd: lost interrupt
hdd: request sense failure: status=0x51 { DriveReady SeekComplete Error }
hdd: request sense failure: error=0x00
hdd: lost interrupt
hdd: lost interrupt
hdd: request sense failure: status=0x51 { DriveReady SeekComplete Error }
hdd: request sense failure: error=0x00
hdc: attached ide-scsi driver.
Its confusing ?