/usr/share/initramfs-tools/scripts/live-bottom/23networking is in live-boot-initramfs-tools 3.0~a24-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 | #!/bin/sh
#set -e
# initramfs-tools header
PREREQ=""
prereqs()
{
echo "${PREREQ}"
}
case "${1}" in
prereqs)
prereqs
exit 0
;;
esac
# live-boot header
if [ -n "${NONETWORKING}" ]
then
exit 0
fi
. /scripts/live-functions
log_begin_msg "Preconfiguring networking"
# live-boot script
IFFILE="/root/etc/network/interfaces"
if [ "${STATICIP}" = "frommedia" -a -e "${IFFILE}" ]
then
# will use existent /etc/network/interfaces
log_end_msg
exit 0
fi
cat > "${IFFILE}" << EOF
auto lo
iface lo inet loopback
EOF
udevadm trigger
udevadm settle
if [ -z "${NETBOOT}" -a -n "${STATICIP}" -a "${STATICIP}" != "frommedia" ]
then
parsed=$(echo "${STATICIP}" | sed -e 's/,/ /g')
for ifline in ${parsed}
do
ifname="$(echo ${ifline} | cut -f1 -d ':')"
ifaddress="$(echo ${ifline} | cut -f2 -d ':')"
ifnetmask="$(echo ${ifline} | cut -f3 -d ':')"
ifgateway="$(echo ${ifline} | cut -f4 -d ':')"
cat >> "${IFFILE}" << EOF
allow-hotplug ${ifname}
iface ${ifname} inet static
address ${ifaddress}
netmask ${ifnetmask}
EOF
if [ -n "${ifgateway}" ]
then
cat >> "${IFFILE}" << EOF
gateway ${ifgateway}
EOF
fi
done
else
if [ -z "${NETBOOT}" ] || [ -n "${DHCP}" ]
then
# default, dhcp assigned
method="dhcp"
else
# make sure that the preconfigured interface would not get reassigned by dhcp
# on startup by ifup script - otherwise our root fs might be disconnected!
method="manual"
fi
# iterate the physical interfaces and add them to the interfaces list and also add when ethdevice= called on cmdline
if [ "${method}" != dhcp ] || ([ ! -x /root/usr/sbin/NetworkManager ] && [ ! -x /root/usr/sbin/wicd ]) || [ ! -z "${ETHDEVICE}" ]
then
for interface in /sys/class/net/eth* /sys/class/net/ath* /sys/class/net/wlan*
do
[ -e ${interface} ] || continue
i="$(basename ${interface})"
cat >> "${IFFILE}" << EOF
allow-hotplug ${i}
iface ${i} inet ${method}
EOF
done
fi
if [ ! -f /root/etc/resolv.conf ] || [ -z "$(cat /root/etc/resolv.conf)" ]
then
if [ -f /netboot.config ]
then
# create a resolv.conf if it is not present or empty
cp /netboot.config /root/var/log/netboot.config
rc_search=$(cat netboot.config | awk '/domain/{print $3}')
rc_server0=$(cat netboot.config | awk '/dns0/{print $5}')
rc_server1=$(cat netboot.config | awk '/dns0/{print $8}')
rc_server0="nameserver ${rc_server0}"
if [ "${rc_server1}" = "0.0.0.0" ]
then
rc_server1=""
else
rc_server1="nameserver ${rc_server1}"
fi
cat > /root/etc/resolv.conf << EOF
# /etc/resolv.conf
# Autogenerated by live-boot
search ${rc_search}
domain ${rc_search}
${rc_server0}
${rc_server1}
EOF
cat /root/etc/resolv.conf >> /root/var/log/netboot.config
fi
fi
fi
#if [ ! -x /root/usr/sbin/NetworkManager ]
#then
# for i in eth0 eth1 eth2 ath0 wlan0
# do
# grep -q "iface ${i}" ${IFFILE} && continue
#
#cat >> "${IFFILE}" << EOF
#allow-hotplug ${i}
#iface ${i} inet dhcp
#
#EOF
#
# done
#fi
log_end_msg
|