diskimage-builder/scripts/init
Dan Prince 0ff82aff46 Make bash troubleshooting configurable
Adds a new 'troubleshooting' function which encapsulates
the things we might want to do when something bad happens.
Typically this is echo'ing a simple message and launching a
bash shell.

The new troubleshooting function also makes use of a new
'troubleshoot' kernel param which if specific will allow you to
hang the deployment process and interactively debug the deploy_ramdisk
via a bash shell on a console.

Troubleshoot is disabled by default.

Fixes LP Bug #1191043.

Change-Id: I2cba8a9674075ba7e420027d40ef8cbe756cf07e
2013-06-18 14:28:52 -04:00

145 lines
3.5 KiB
Bash

#!/bin/bash
# Copyright (c) 2012 NTT DOCOMO, INC.
# Copyright 2012 Hewlett-Packard Development Company, L.P.
#
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
echo "init"
source /init-func
PATH=/sbin:/bin:/usr/bin:/usr/sbin
export PATH
mkdir -p /proc
mkdir -p /sys
mkdir -p /dev
mkdir -p /boot
mkdir -p /etc
mkdir -p /mnt
mkdir -p /lib/modules
mount -t proc proc /proc
readonly _BOOTIF_=$(get_kernel_parameter BOOTIF)
readonly _IP_=$(get_kernel_parameter ip)
readonly BOOT_MAC_ADDRESS=$(echo "$_BOOTIF_" | sed -e "s/-/:/g" | sed -e "s/^01://g" | tr 'a-f' 'A-F')
readonly BOOT_IP_ADDRESS=$(echo "$_IP_" | cut -d':' -f1)
readonly BOOT_SERVER=$(echo "$_IP_" | cut -d':' -f2)
readonly BOOT_NETMASK=$(echo "$_IP_" | cut -d':' -f4)
readonly BOOT_GATEWAY=$(echo "$_IP_" | cut -d':' -f3)
readonly DISK=$(get_kernel_parameter disk)
readonly DEPLOYMENT_ID=$(get_kernel_parameter deployment_id)
readonly DEPLOYMENT_KEY=$(get_kernel_parameter deployment_key)
readonly ISCSI_TARGET_IQN=$(get_kernel_parameter iscsi_target_iqn)
readonly TROUBLESHOOT=$(get_kernel_parameter troubleshoot)
mount -t sysfs none /sys
UDEVD=
if [ -x "/bin/systemd-udevd" ]; then
UDEVD="systemd-udevd"
else
UDEVD="udevd"
fi
if [ "$UDEVD" = "systemd-udevd" ]; then
# devtmpfs is required since udev 176
mount -t devtmpfs none /dev
mkdir -p /run
mount -t tmpfs -o "nosuid,size=20%,mode=0755" tmpfs /run
mkdir -p /run/lock
else
mount -t tmpfs none /dev
ln -sf /proc/self/fd /dev/fd
mknod /dev/null c 1 3
mknod /dev/zero c 1 5
mknod /dev/random c 1 8
mknod /dev/urandom c 1 9
mknod /dev/tty0 c 4 0
mknod /dev/tty1 c 4 1
mknod /dev/tty2 c 4 2
mknod /dev/tty3 c 4 3
mknod /dev/tty4 c 4 4
mknod /dev/tty5 c 4 5
mknod /dev/tty6 c 4 6
mknod /dev/tty7 c 4 7
mknod /dev/tty8 c 4 8
mknod /dev/tty9 c 4 9
mknod /dev/tty c 5 0
mknod -m 0600 /dev/console c 5 1
mknod -m 0666 /dev/ptmx c 5 2
mkdir -p /dev/.udev
mkdir -p /dev/.udev/data
fi
echo "starting syslogd"
echo '*.* /initlog' > /etc/syslog.conf
syslogd
klogd
echo "starting udevd"
$UDEVD --daemon --resolve-names=never
echo "load modules"
load_modules_by_udev
echo "starting network $BOOT_MAC_ADDRESS"
t=0
while ! BOOT_INTERFACE=$(find_interface "$BOOT_MAC_ADDRESS"); do
t=`expr "$t" + 5`
if [ "$t" -gt 10 ]; then
break
fi
sleep 5
done
if [ -z "$BOOT_INTERFACE" ]; then
echo "could not find an interface owns MAC=$BOOT_MAC_ADDRESS"
troubleshoot
fi
readonly BOOT_INTERFACE
ifconfig lo 127.0.0.1 up
ifconfig "$BOOT_INTERFACE" up
if [ $? -ne 0 ]; then
sleep 10
ifconfig "$BOOT_INTERFACE" up
if [ $? -ne 0 ]; then
echo "Failed to up $BOOT_INTERFACE"
troubleshoot
fi
fi
ifconfig "$BOOT_INTERFACE" "$BOOT_IP_ADDRESS" netmask "$BOOT_NETMASK"
route add default gw $BOOT_GATEWAY
echo "pinging to boot server $BOOT_SERVER"
w=30
while [ $w -gt 0 ]; do
ping -c 5 -q "$BOOT_SERVER" > /dev/null
if [ $? -eq 0 ]; then
break
fi
sleep 1
w=`expr $w - 5`
done
echo "network ready"