[Gllug] Getting initramfs to work

[Adrian McMenamin]

On Tue, 2005-08-09 at 17:01 +0100, Peter Grandi wrote:

> adrian> but it doesn't want to seem to boot it.
> 
> Given the (customary) lack of clarity here, both as to what you
> are trying to do and the consequences, it is hard to guess what
> is not booting... The '.cpio' file? The kernel? Whatever...
> 

As I didn't ask, at any point, for direct help with this particular
problem but rather for some pointers as to how I could solve it myself
it didn't seem relevant.

Being a reasonably competent kernel developer I am happy enough to get
on with it myself.

GLLUG doesn't strike me as the place to get involved with the details of
how to debug cross compiled kernels. Though obviously it seems an
appropriate forum, to some at least, to show off their clear
intellectual superiority over lesser beings.


> There may be several reasons why ''it dont work mate'' as
> applied to 'initramfs', for example:
> 
> * the '.cpio.gz' data has not been appended to the kernel
>   image;
> 
> * the '.cpio' is not in the new CRC format ('-H crc');
> 
> * the filesystem in the '.cpio' image does not contain
>   some essential bits and pieces;
> 
> * the kernel is missing some essential drivers;
> 
> * the '.cpio.gz' image is not named "usr/initramfs_data.cpio.gz"
>   in the kernel build directory;
> 
> * ...
> 
> adrian> I can't really find a beginners guide to using initramfs
> 
> Really surprising... :-)
> 

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