Comment 76 for bug 181561

I'm assuming the 8.04 Live CD Beta didn't have this fix and the daily build CDs did because with booting from the latter the PATA hard drive is now longer available, i.e. this fix is a regression for some users.

    PATA drive available: Linux version 2.6.24-12-generic (buildd@yellow) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu4)) #1 SMP Wed Mar 12 22:31:43 UTC 2008 (Ubuntu 2.6.24-12.22-generic)
    PATA drive missing: Linux version 2.6.24-16-generic (buildd@yellow) (gcc version 4.2.3 (Ubuntu 4.2.3-2ubuntu7)) #1 SMP Thu Apr 10 12:47:45 UTC 2008 (Ubuntu 2.6.24-16.30-generic)

Some interesting lines from the latter's dmesg.

    [ 129.387661] PCI: Setting latency timer of device 0000:00:04.0 to 64
    [ 129.388040] pata_pdc2027x 0000:01:09.0: version 1.0
    [ 129.488423] pata_pdc2027x 0000:01:09.0: PLL input clock 16650 kHz
    [ 129.518914] scsi0 : pata_pdc2027x
    [ 129.519528] scsi1 : pata_pdc2027x
    [ 129.519546] ata1: PATA max UDMA/133 mmio m16384@0xfcff4000 cmd 0xfcff57c0 irq 17
    [ 129.519548] ata2: PATA max UDMA/133 mmio m16384@0xfcff4000 cmd 0xfcff55c0 irq 17
    [ 132.016226] pata_amd 0000:00:04.0: version 0.3.10
    [ 132.016263] PCI: Setting latency timer of device 0000:00:04.0 to 64
    [ 132.016312] scsi2 : pata_amd
    [ 132.016451] scsi3 : pata_amd
    [ 132.016992] ata3: PATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xf000 irq 14
    [ 132.016995] ata4: PATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xf008 irq 15
    [ 137.203403] ata3: port is slow to respond, please be patient (Status 0xd0)
    [ 142.011621] ata3: SRST failed (errno=-16)
    [ 142.178359] ata4: port disabled. ignoring.