Embedded Handbook/Bootloaders/Das U-Boot
Rather than duplicate existing information, please consult the upstream documentation and their main wiki.
Gentoo Specific instructions
There is no package for the Das U-boot source code. Follow the instructions in the documentation for obtaining the source from git or an archived release.
There is a package for the Das U-boot utility tools (such as mkimage), see u-boot-tools.
It is most likely the build will be cross-compiled. See Cross build environment.
Booting a new kernel with U-Boot
After compiling a new Gentoo kernel, copy the resulting zImage from /usr/src/linux/arch/arm/boot/zImage to the boot partition (replacing the existing zImage).
This page is based on a document formerly found on our main website gentoo.org.
The following people contributed to the original document: Mike Frysinger, Ned Ludd, Robin H. Johnson, Alex Tarkovsky, Alexey Shvetsov, Raúl Porcel, Joshua Saddler on April 28, 2013.
They are listed here because wiki history does not allow for any external attribution. If you edit the wiki article, please do not add yourself here; your contributions are recorded on each article's associated history page.