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    SubjectRe: [question] x86/x86_64 boot process
    Would it be reasonable to put the setup code at 0x7c00 (given that I
    can fit my boot loader in the space before the kernel header)?

    On Tue, Jun 12, 2012 at 5:20 PM, Brandon Falk <> wrote:
    > It's currently only for learning purposes, and I will change loading
    > from 0x90000. Thanks for the help, now that I know that I'm
    > responsible for loading the protected-mode code, I know what to do
    > next.
    > On Tue, Jun 12, 2012 at 5:16 PM, H. Peter Anvin <> wrote:
    >> On 06/12/2012 02:14 PM, Brandon Falk wrote:
    >>> All I really see related to the post-setup stage is:
    >>> 'The 32-bit (non-real-mode) kernel starts at offset (setup_sects+1)*512
    >>> in the kernel file (again, if setup_sects == 0 the real value is 4.)
    >>> It should be loaded at address 0x10000 for Image/zImage kernels and
    >>> 0x100000 for bzImage kernels.'
    >>> I've read this document a few times, and it doesn't seem to mention if
    >>> the kernel assists in loading. Do I have to load up the whole
    >>> protected-mode kernel? Just the first few sectors? I guess that's what
    >>> I'm trying to figure out, and I feel the boot.txt has not answered
    >>> that for me.
    >> I would also strongly discourage you from writing a new bootloader if
    >> you can avoid it.  You *certainly* want to avoid the use of the fixed
    >> 0x90000 address, that is a decade obsolete.
    >>        -hpa
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