I've got an old IDE disk (Western Digital AC2420H) that I want to copy data off from. I plugged it into my fairly recent system (Gigabyte 7IEX4 motherboard, bought in 2000). However, linux can't read the disk. The disk is identified, but the partition table and other data can't be read from it. I tried reconfiguring the kernel with CONFIG_IDEDISK_MULTI_MODE based on a google search and kernel config documentation but that didn't change anything. Relevant dmesg output follows. Any suggestions?
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
AMD7409: IDE controller on PCI bus 00 dev 39
AMD7409: chipset revision 7
AMD7409: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:pio
hda: Maxtor 91080D5, ATA DISK drive
hdc: WDC AC2420H, ATA DISK drive
ide2: ports already in use, skipping probe
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 21095424 sectors (10801 MB) w/512KiB Cache, CHS=1313/255/63, UDMA(33)
hdc: set_drive_speed_status: status=0x51 { DriveReady SeekComplete Error }
hdc: set_drive_speed_status: error=0x04 { DriveStatusError }
hdc: 830760 sectors (425 MB) w/128KiB Cache, CHS=989/15/56
ide-floppy driver 0.99.newide
Partition check:
/dev/ide/host0/bus0/target0/lun0: p1 p2 p3
/dev/ide/host0/bus1/target0/lun0:hdc: read_intr: status=0x65 { DriveReady DeviceFault
CorrectedError Error }
hdc: read_intr: error=0x04 { DriveStatusError }
ide1: reset timed-out, status=0xd0
hdc: read_intr: status=0x65 { DriveReady DeviceFault CorrectedError Error }
hdc: read_intr: error=0x04 { DriveStatusError }
ide1: reset timed-out, status=0xd0
end_request: I/O error, dev 16:00 (hdc), sector 3
end_request: I/O error, dev 16:00 (hdc), sector 4
end_request: I/O error, dev 16:00 (hdc), sector 6
end_request: I/O error, dev 16:00 (hdc), sector 2
end_request: I/O error, dev 16:00 (hdc), sector 4
end_request: I/O error, dev 16:00 (hdc), sector 6
unable to read partition table
TIA,
-D
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