debian/patches/26_support_dns_bootoption.patch

   1 #! /bin/sh /usr/share/dpatch/dpatch-run
   2 ## 26_support_dns_bootoption.dpatch by Michael Prokop <mika@grml.org>
   3 ##
   4 ## All lines beginning with `## DP:' are a description of the patch.
   5 ## DP: Support dns bootoption. Usage examples: dns=8.8.8.8 / dns=8.8.8.8,1.2.3.4
   6
   7 @DPATCH@
   8 --- a/scripts/live
   9 +++ b/scripts/live
  10 @@ -77,6 +77,18 @@
  11                                 BOOTIF="${x#BOOTIF=}"
  12                                 ;;
  13
  14 +                       dns=*)
  15 +                               DNSSERVER="${ARGUMENT#*=}"
  16 +                               if echo "${DNSSERVER}" | grep -q , ; then
  17 +                                       DNSSERVER1="${DNSSERVER%,*}"
  18 +                                       DNSSERVER2="${DNSSERVER#*,}"
  19 +                                       export DNSSERVER1 DNSSERVER2
  20 +                               else
  21 +                                       DNSSERVER1="$DNSSERVER"
  22 +                                       export DNSSERVER1
  23 +                               fi
  24 +                               unset DNSSERVER
  25 +                               ;;
  26                         debug)
  27                                 DEBUG="Yes"
  28                                 export DEBUG
  29 --- a/scripts/live-bottom/23networking_grml
  30 +++ b/scripts/live-bottom/23networking_grml
  31 @@ -44,7 +44,12 @@
  32
  33  # prepare a new /etc/network/interfaces file (and, possibly, a new /etc/resolv.conf)
  34  IFFILE="/root/etc/network/interfaces"
  35 -RESOLVCONF="/root/etc/resolv.conf"
  36 +if [ -L /root/etc/resolv.conf ] ; then
  37 +  # assume we have resolvconf
  38 +  RESOLVCONF=/root/etc/resolvconf/resolv.conf.d/base
  39 +else
  40 +  RESOLVCONF="/root/etc/resolv.conf"
  41 +fi
  42
  43  # config for loopback networking
  44  cat > $IFFILE << EOF
  45 @@ -105,3 +110,17 @@
  46
  47      echo>> $IFFILE
  48  done
  49 +
  50 +# dns bootoption
  51 +if [ -n "$DNSSERVER1" ]
  52 +then
  53 +       # disable any existing entries
  54 +       if [ -r $RESOLVCONF ]
  55 +       then
  56 +               sed -i 's/nameserver/# nameserver/' $RESOLVCONF
  57 +       fi
  58 +       for i in $DNSSERVER1 $DNSSERVER2
  59 +       do
  60 +               echo "nameserver $i" >> $RESOLVCONF
  61 +       done
  62 +fi