Touch based Dual Boot Menu

[Andy Green]

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Somebody in the thread at some point said:
| AG>
| AG> make ARCH=arm menuconfig
|
| thank you.
|
| is there a way to make zImage out of uImage again?

Not 100% certain but stripping the 64-byte U-Boot header that we add
will certainly devolve it somewhat.

| I am not really sure i understand what happens here (build script):
|
| ${CROSS_COMPILE}objcopy -O binary -R .note -R .comment -S
|  $1/arch/arm/boot/compressed/vmlinux $1/linux.bin

This is removing the note and comment sections from vmlinux

| mkimage -A arm -O linux -T kernel -C none -a $START -e $START
|  -n "OM $PRODUCT $BRANCH""_$HEAD" -d $1/linux.bin $1/uImage-$PRODUCT.bin

This is adding a short U-Boot header in front of the kernel binary, it
has stuff like a datestamp and details about the kernel in it, together
with a short version name.

- -Andy
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