Dear Edward,

In message <CANwz6nzQq8a1RnqL3Ety2tJ-CkTOnOObQtiEVXu6+TOhve5LAA@...> you wrote:

A uImage file is a kernel with a modified header for u-boot. A tool called

No header gets modified. Instead, a new header gets prepended.

mkimage is used to convert a zImage (regular kernel compressed image) to a

Actually it's pretty stupid to use a zImage inside an uImage. It is
much better to use normal (uncompressed) kernel image, compress it
using just gzip, and use this as poayload for mkimage. This way
U-Boot does the uncompresiong instead of including yet another
uncompressor with each kernel image.

uImage file. And No, zImage files, as they are, are not compatible with
U-Boot. You must convert them

You can boot zImage files directly with U-Boot. That's what the
"bootz" command is for.


Best regards,

Wolfgang Denk

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