As far as I can see, all of you use motherboards featuring SATA
connectivity, most of you use one or more SATA devices.

Joshua: I've got exactly the same motherboard. The kernel parameter
pci=nomsi worked for me.

SideShow Bob: all_generic_ide might still work, even if you only use
SATA drives. This is because most motherboards feature a IDE
compatibility mode for accessing SATA drives by a non-SATA OS.

The following changes have been made to the 2.6.24 kernel's SATA subsystem:
*      Link power management infrastructure. Device Initiated Power Management, 
which is defined in SATA 2.5 can be enabled for disks which support it. This 
feature enables DIPM in linux when the user sets the link power management 
policy to "min_power". It's also possible to set the PM policy to 
"max_performance" or "medium_power". Implement hw link power management support 
for ahci
*      SATA Port Multiplier support. Implement PMP support for ahci and 
sata_sil24
*      ACPI-based PATA/SATA hotplug
*      libata_pata: ACPI support
*      Turn on ACPI by default
*      Add a IDE style DMA disable
*      ahci: RAID mode SATA patch for Intel Tolapai, add MCP79 support to AHCI 
driver
*      pata_ns87415: Initial cut at 87415/87560 IDE support
*      pata_sil680: Add MMIO support
*      sata_nv: add SW NCQ support for MCP51/MCP55/MCP61
(source: http://kernelnewbies.org/Linux_2_6_24 )

I think at least the first two items are very interesting, beacause they
describe (in my opinion) major changes.

-- 
initramfs error/problem ubuntu 8.04
https://bugs.launchpad.net/bugs/222176
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