kumquat-buildroot/board/raspberrypi/post-build.sh

#!/bin/sh

set -u
set -e

# Add a console on tty1
grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab || \
sed -i '/GENERIC_SERIAL/a\
tty1::respawn:/sbin/getty -L  tty1 0 vt100 # HDMI console' ${TARGET_DIR}/etc/inittab
raspberrypi, raspberrypi2: add a serial console The current Buildroot defconfigs for Raspberry Pi and Raspberry Pi 2 instantiate a console on tty1, which appears on HDMI. Add a console on the serial port (ttyAMA0) to be more consistent with other defconfigs and provide a better out-of-the-box experience to users used to have a serial console from Buildroot defconfigs. This requires three changes: 1. have two 'console=' entries in the kernel command line: tty1, then ttyAMA0; 2. change BR2_TARGET_GENERIC_GETTY_PORT to "console", so it starts a getty on the last console= passed to the kernel, ttyAMA0; 3. add a new getty on tty1 to the generated inittab. Step 2 is actually obtained by removing BR2_TARGET_GENERIC_GETTY_PORT entirely from the defconfigs, since "console" is the default value. Step 3 requires a post-build script since the Buildroot makefiles can configure only one console. Note: instead of simply adding a new getty on ttyAMA0 (which would work) this patch actually changes BR2_TARGET_GENERIC_GETTY_PORT to instantiate a console on UART, then adds back tty1 via post-build.sh. This is done only to avoid the "GENERIC_SERIAL" comment where we instantiate an HDMI console, then instantiate a really-serial console on another line. The result is these two inittab lines: console::respawn:/sbin/getty -L console 0 vt100 # GENERIC_SERIAL tty1::respawn:/sbin/getty -L tty1 0 vt100 # HDMI console Cc: Yann E. MORIN <yann.morin.1998@free.fr> Cc: Arnout Vandecappelle <arnout@mind.be> Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net> Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 2016-04-17 23:45:46 +02:00			`#!/bin/sh`

			`set -u`
			`set -e`

			`# Add a console on tty1`
			`grep -qE '^tty1::' ${TARGET_DIR}/etc/inittab \|\| \`
			`sed -i '/GENERIC_SERIAL/a\`
			`tty1::respawn:/sbin/getty -L tty1 0 vt100 # HDMI console' ${TARGET_DIR}/etc/inittab`