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initramfs-framework: override init file to reboot on error

The initramfs-framework from oe-core performs an endless loop of "sleep
3600" when fatal() is called. We need to reboot instead.

Signed-off-by: Jan Luebbe <jluebbe@debian.org>
neels/inmarsat
Jan Luebbe 6 years ago
committed by Holger Hans Peter Freyther
parent
commit
51c1b427ec
  1. 139
      recipes-core/initrdscripts/initramfs-framework/init
  2. 4
      recipes-core/initrdscripts/initramfs-framework_sysmocom.inc
  3. 1
      yocto-shared/initramfs-framework_1.0.bbappend

139
recipes-core/initrdscripts/initramfs-framework/init

@ -0,0 +1,139 @@
#!/bin/sh
# Copyright (C) 2011 O.S. Systems Software LTDA.
# Licensed on MIT
#
# Provides the API to be used by the initramfs modules
#
# Modules need to provide the following functions:
#
# <module>_enabled : check if the module ought to run (return 1 to skip)
# <module>_run : do what is need
#
# Boot parameters are available on environment in the as:
#
# 'foo=value' as 'bootparam_foo=value'
# 'foo' as 'bootparam_foo=true'
# Register a function to be called before running a module
# The hook is called as:
# <function> pre <module>
add_module_pre_hook() {
MODULE_PRE_HOOKS="$MODULE_PRE_HOOKS $1"
}
# Register a function to be called after running a module
# The hook is called as:
# <function> post <module>
add_module_post_hook() {
MODULE_POST_HOOKS="$MODULE_POST_HOOKS $1"
}
# Load kernel module
load_kernel_module() {
if modprobe $1 >/dev/null 2>&1; then
info "Loaded module $1"
else
debug "Failed to load module $1"
fi
}
# Prints information
msg() {
echo "$@" >/dev/console
}
# Prints information if verbose bootparam is used
info() {
[ -n "$bootparam_verbose" ] && echo "$@" >/dev/console
}
# Prints information if debug bootparam is used
debug() {
[ -n "$bootparam_debug" ] && echo "DEBUG: $@" >/dev/console
}
# Prints a message and exit (resulting in a panic)
fatal() {
echo $1 >/dev/console
echo >/dev/console
msg "fatal error: rebooting"
reboot -f
}
# Variables shared amoung modules
ROOTFS_DIR="/rootfs" # where to do the switch root
MODULE_PRE_HOOKS="" # functions to call before running each module
MODULE_POST_HOOKS="" # functions to call after running each module
MODULES_DIR=/init.d # place to look for modules
# make mount stop complaining about missing /etc/fstab
touch /etc/fstab
# initialize /proc, /sys and /var/lock
mkdir -p /proc /sys /var/lock
mount -t proc proc /proc
mount -t sysfs sysfs /sys
# populate bootparam environment
for p in `cat /proc/cmdline`; do
opt=`echo $p | cut -d'=' -f1`
opt=`echo $opt | sed -e 's/-/_/'`
if [ "`echo $p | cut -d'=' -f1`" = "$p" ]; then
eval "bootparam_${opt}=true"
else
value="`echo $p | cut -d'=' -f2-`"
eval "bootparam_${opt}=\"${value}\""
fi
done
# use /dev with devtmpfs
if grep -q devtmpfs /proc/filesystems; then
mkdir -p /dev
mount -t devtmpfs devtmpfs /dev
else
if [ ! -d /dev ]; then
fatal "ERROR: /dev doesn't exist and kernel doesn't has devtmpfs enabled."
fi
fi
mkdir $ROOTFS_DIR
# Load and run modules
for m in $MODULES_DIR/*; do
# Skip backup files
if [ "`echo $m | sed -e 's/\~$//'`" != "$m" ]; then
continue
fi
module=`basename $m | cut -d'-' -f 2`
debug "Loading module $module"
# pre hooks
for h in $MODULE_PRE_HOOKS; do
debug "Calling module hook (pre): $h"
eval "$h pre $module"
debug "Finished module hook (pre): $h"
done
# process module
. $m
if ! eval "${module}_enabled"; then
debug "Skipping module $module"
continue
fi
debug "Running ${module}_run"
eval "${module}_run"
# post hooks
for h in $MODULE_POST_HOOKS; do
debug "Calling module hook (post): $h"
eval "$h post $module"
debug "Finished module hook (post): $h"
done
done
# Catch all
fatal "ERROR: Initramfs failed to initialize the system."

4
recipes-core/initrdscripts/initramfs-framework_sysmocom.inc

@ -0,0 +1,4 @@
THISDIR := "${@os.path.dirname(bb.data.getVar('FILE', d, True))}"
FILESPATH =. "${@base_set_filespath(["${THISDIR}/${PN}"], d)}:"
PRINC="4"

1
yocto-shared/initramfs-framework_1.0.bbappend

@ -0,0 +1 @@
require recipes-core/initrdscripts/${PN}_sysmocom.inc
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