Calling `load_cfg BR2_EXTERNAL_INFIX_PATH` from post-image.sh caused
warnings due to multiple hits in the .config file:
post-image.sh: 12: /tmp/tmp.5a3xhQQVc8: BR2_EXTERNAL_INFIX_PATH: not found
post-image.sh: 13: /tmp/tmp.5a3xhQQVc8: BR2_EXTERNAL_INFIX_PATH: not found
Let's grep for a "key.*=" instead of "key" to drop those warnings, while
still acting as a catch-all for partial matches.
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
Similarly to how $(call IXMSG,"hello world") outputs a blue
information line from a makefile, provide `ixmsg` to accomplish the
same thing in shell scripts.
Use a different prefix (`#!:` vs `>>>`) to differentiate it from
makefile output.
On amd64, we use grub instead of U-Boot, because yours truly can't
figure out how to handle ACPI handover to the kernel.
The resulting image is now called disk.img instead of the old mmc.img,
since we can use it over any interface (e.g. virtio or SCSI).
Joachim Wiberg