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Yann E. MORIN 086c96b452 configs/pc_x86_64_bios_defconfig: fix image generation after grub2 rework 
Commit 82d1e8c628 (boot/grub2: use none platform when building for
host) changed host-grub2 to only install the tools, not the actual
bootloader or its modules, as they are of no use on the host.

It so happened that, when not instructed to built for a specific
platform, the grub2 buildsystem would default to build the legacy bios
platform (at least when the build happens on an x86 or x86_64 host).

However, because the host is more often than not an x86 or x86_64, when
the target was also an x68 or x86_64, the modules built for the host
could be re-used for the target, and this is what was done for our
pc_x86_64_bios_defconfig.

But now that we explicitly tell the grub2 buildsystem to not build any
platform when we build host-grub2, we no longer have access to the grub2
modules from the host directory, and the build fails when assembling the
final image.

We fix that in two ways:

First, we ensure that individual modules from the target grub2 get installed
in target/; we can only do that if the target grub2 tools are also
installed, so we enable that in the configuration.

Second, we fix the post-build script to look in target/ rather than in
host/.

All that, just for the 512-byte boot.img bootstrap, which pulls in all
the other modules (4.3MiB), the tools (8.8MiB)... But we are not going
to cherry-pick individual modules; this is error prone and
unmaintainable...

Reported-by: Adam Duskett <aduskett@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Köry Maincent <kory.maincent@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
2021-12-05 12:32:24 +01:00
arch
board configs/pc_x86_64_bios_defconfig: fix image generation after grub2 rework 2021-12-05 12:32:24 +01:00
boot
configs configs/pc_x86_64_bios_defconfig: fix image generation after grub2 rework 2021-12-05 12:32:24 +01:00
docs
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linux
package package/apr: add CPE variables 2021-12-05 12:28:47 +01:00
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README

README 

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at http://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on OFTC IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches