[Bug 13535] New: Kernel does not search for DSDT in initramfs

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Ubuntu | linux

           Summary: Kernel does not search for DSDT in initramfs
           Product: Ubuntu
           Version: unspecified
          Platform: All
               URL: http://gaugusch.at/kernel.shtml
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: linux
        AssignedTo: fabbione at ubuntu.com
        ReportedBy: greg at primate.net
         QAContact: kernel-bugs at lists.ubuntu.com
                CC: jbailey at ubuntu.com


Breezy Badger recently switched from initrd to initramfs for creating its boot
images. 
mkinitramfs has the capability to include a custom DSDT.aml to replace buggy
implementations (essential for getting good ACPI supoprt on many laptops).
Although the ubuntu kernel is currently patched to search for the DSDT in
initrd, it does not have the proper patches to do this in initramfs. (I believe
the ramfs must be mounted at an earlier state for the DSDT to be read for ACPI), 
These patches can be found at http://gaugusch.at/kernel.shtml.
These should probably be included in the default kernel, to allow people an easy
way to override their broken DSDT's without having to do a kernel recompile.

thanks

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