Reshuffled the IDE cables on the IT8212 card: 1 disk per cable (no longer master/slave). PC boots up on 2.6.20-14, one disk is still undetected.

dmesg attached.

andersja@plasken:~$ lspci -vvn
00:00.0 0600: 8086:29a0 (rev 02)
        Subsystem: 1458:5000
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR-
        Latency: 0
        Capabilities: <access denied>

00:01.0 0604: 8086:29a1 (rev 02) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
        I/O behind bridge: 00006000-00006fff
        Memory behind bridge: f4000000-f6ffffff
        Prefetchable memory behind bridge: 00000000e0000000-00000000efffffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-
        Capabilities: <access denied>

00:1a.0 0c03: 8086:2834 (rev 02) (prog-if 00 [UHCI])
        Subsystem: 1458:5004
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 16
        Region 4: I/O ports at d000 [size=32]

00:1a.1 0c03: 8086:2835 (rev 02) (prog-if 00 [UHCI])
        Subsystem: 1458:5004
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 20
        Region 4: I/O ports at c000 [size=32]

00:1a.7 0c03: 8086:283a (rev 02) (prog-if 20 [EHCI])
        Subsystem: 1458:5006
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin C routed to IRQ 18
        Region 0: Memory at fa105000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>

00:1b.0 0403: 8086:284b (rev 02)
        Subsystem: 1458:a002
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 22
        Region 0: Memory at fa100000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: <access denied>

00:1c.0 0604: 8086:283f (rev 02) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Bus: primary=00, secondary=02, subordinate=02, sec-latency=0
        I/O behind bridge: 00005000-00005fff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
        Capabilities: <access denied>

00:1c.3 0604: 8086:2845 (rev 02) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Bus: primary=00, secondary=03, subordinate=03, sec-latency=0
        I/O behind bridge: 00007000-00008fff
        Memory behind bridge: fa000000-fa0fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
        Capabilities: <access denied>

00:1c.4 0604: 8086:2847 (rev 02) (prog-if 00 [Normal decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Bus: primary=00, secondary=04, subordinate=04, sec-latency=0
        I/O behind bridge: 00009000-00009fff
        Memory behind bridge: f7000000-f8ffffff
        Prefetchable memory behind bridge: 0000000080000000-00000000800fffff
        Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
        BridgeCtl: Parity- SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
        Capabilities: <access denied>

00:1d.0 0c03: 8086:2830 (rev 02) (prog-if 00 [UHCI])
        Subsystem: 1458:5004
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 19
        Region 4: I/O ports at c400 [size=32]

00:1d.1 0c03: 8086:2831 (rev 02) (prog-if 00 [UHCI])
        Subsystem: 1458:5004
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 17
        Region 4: I/O ports at c800 [size=32]

00:1d.2 0c03: 8086:2832 (rev 02) (prog-if 00 [UHCI])
        Subsystem: 1458:5004
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin C routed to IRQ 18
        Region 4: I/O ports at cc00 [size=32]

00:1d.7 0c03: 8086:2836 (rev 02) (prog-if 20 [EHCI])
        Subsystem: 1458:5006
        Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 19
        Region 0: Memory at fa104000 (32-bit, non-prefetchable) [size=1K]
        Capabilities: <access denied>

00:1e.0 0604: 8086:244e (rev f2) (prog-if 01 [Subtractive decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Bus: primary=00, secondary=05, subordinate=05, sec-latency=32
        I/O behind bridge: 0000a000-0000bfff
        Memory behind bridge: f9000000-f9ffffff
        Prefetchable memory behind bridge: 0000000080100000-00000000801fffff
        Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-
        Capabilities: <access denied>

00:1f.0 0601: 8086:2810 (rev 02)
        Subsystem: 1458:5001
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Capabilities: <access denied>

00:1f.2 0101: 8086:2820 (rev 02) (prog-if 8a [Master SecP PriP])
        Subsystem: 1458:b002
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 17
        Region 0: I/O ports at 01f0 [size=8]
        Region 1: I/O ports at 03f4 [size=1]
        Region 2: I/O ports at 0170 [size=8]
        Region 3: I/O ports at 0374 [size=1]
        Region 4: I/O ports at f000 [size=16]
        Region 5: I/O ports at fc00 [size=16]
        Capabilities: <access denied>

00:1f.3 0c05: 8086:283e (rev 02)
        Subsystem: 1458:5001
        Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Interrupt: pin C routed to IRQ 11
        Region 0: Memory at fa106000 (32-bit, non-prefetchable) [size=256]
        Region 4: I/O ports at 0500 [size=32]

00:1f.5 0101: 8086:2825 (rev 02) (prog-if 85 [Master SecO PriO])
        Subsystem: 1458:b002
        Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin B routed to IRQ 17
        Region 0: I/O ports at d800 [size=8]
        Region 1: I/O ports at dc00 [size=4]
        Region 2: I/O ports at e000 [size=8]
        Region 3: I/O ports at e400 [size=4]
        Region 4: I/O ports at e800 [size=16]
        Region 5: I/O ports at ec00 [size=16]
        Capabilities: <access denied>

01:00.0 0300: 10de:0392 (rev a1) (prog-if 00 [VGA])
        Subsystem: 10b0:0401
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f4000000 (32-bit, non-prefetchable) [size=16M]
        Region 1: Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Region 3: Memory at f5000000 (64-bit, non-prefetchable) [size=16M]
        Region 5: I/O ports at 6000 [size=128]
        [virtual] Expansion ROM at f6000000 [disabled] [size=128K]
        Capabilities: <access denied>

03:00.0 0106: 197b:2363 (rev 02) (prog-if 01 [AHCI 1.0])
        Subsystem: 1458:b000
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 17
        Region 5: Memory at fa000000 (32-bit, non-prefetchable) [size=8K]
        Capabilities: <access denied>

03:00.1 0101: 197b:2363 (rev 02) (prog-if 85 [Master SecO PriO])
        Subsystem: 1458:b000
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin B routed to IRQ 16
        Region 0: I/O ports at 7000 [size=8]
        Region 1: I/O ports at 7400 [size=4]
        Region 2: I/O ports at 7800 [size=8]
        Region 3: I/O ports at 7c00 [size=4]
        Region 4: I/O ports at 8000 [size=16]
        Capabilities: <access denied>

04:00.0 0200: 11ab:4362 (rev 22)
        Subsystem: 1458:e000
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 0, Cache Line Size: 32 bytes
        Interrupt: pin A routed to IRQ 16
        Region 0: Memory at f8000000 (64-bit, non-prefetchable) [size=16K]
        Region 2: I/O ports at 9000 [size=256]
        [virtual] Expansion ROM at 80000000 [disabled] [size=128K]
        Capabilities: <access denied>

05:00.0 0104: 1283:8212 (rev 13)
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B-
        Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-
        Latency: 64 (2000ns min, 2000ns max)
        Interrupt: pin A routed to IRQ 21
        Region 0: I/O ports at a010 [size=8]
        Region 1: I/O ports at a400 [size=4]
        Region 2: I/O ports at a810 [size=8]
        Region 3: I/O ports at ac00 [size=4]
        Region 4: I/O ports at b000 [size=16]
        [virtual] Expansion ROM at 80100000 [disabled] [size=128K]
        Capabilities: <access denied>

andersja@plasken:~$