a0871be6c0
* Update buildroot-patches for 2020.11-rc1 buildroot * Update buildroot to 2020.11-rc1 Signed-off-by: Stefan Agner <stefan@agner.ch> * Don't rely on sfdisk --list-free output The --list-free (-F) argument does not allow machine readable mode. And it seems that the output format changes over time (different spacing, using size postfixes instead of raw blocks). Use sfdisk json output and calculate free partition space ourselfs. This works for 2.35 and 2.36 and is more robust since we rely on output which is meant for scripts to parse. * Migrate defconfigs for Buildroot 2020.11-rc1 In particular, rename BR2_TARGET_UBOOT_BOOT_SCRIPT(_SOURCE) to BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT(_SOURCE). * Rebase/remove systemd patches for systemd 246 * Drop apparmor/libapparmor from buildroot-external * hassos-persists: use /run as directory for lockfiles The U-Boot tools use /var/lock by default which is not created any more by systemd by default (it is under tmpfiles legacy.conf, which we no longer install). * Disable systemd-update-done.service The service is not suited for pure read-only systems. In particular the service needs to be able to write a file in /etc and /var. Remove the service. Note: This is a static service and cannot be removed using systemd-preset. * Disable apparmor.service for now The service loads all default profiles. Some might actually cause problems. E.g. the profile for ping seems not to match our setup for /etc/resolv.conf: [85503.634653] audit: type=1400 audit(1605286002.684:236): apparmor="DENIED" operation="open" profile="ping" name="/run/resolv.conf" pid=27585 comm="ping" requested_mask="r" denied_mask="r" fsuid=0 ouid=0
Intro
=====
This is a board configuration for the apu2 platform by PC Engines.
https://pcengines.ch/apu2.htm
Since the apu2 does not have any graphical output, the default configuration
will ensure that the kernel output as well as the login prompt will be sent to
the serial port.
How to build
============
The provided defconfig creates a hybrid isolinux image that can be booted from
either an USB stick or a CD.
$ make pcengines_apu2_defconfig
$ make
How to write to an USB stick
============================
Once the build process is finished you will have an image
called "rootfs.iso9660" in the output/images/ directory.
Copy the bootable "rootfs.iso9660" onto the USB stick with "dd":
$ sudo dd if=output/images/rootfs.iso9660 of=/dev/sdX bs=1M conv=fsync
$ sudo sync
How to connect to the apu2
==========================
Connect to the DB9 serial port of the apu2 board (either directly or through a
USB adapter) with a baudrate of 115200.
For example with miniterm (part of pyserial):
$ miniterm.py -f direct /dev/ttyUSB0 115200