org.handhelds.familiar/packages/altboot/files/altboot-menu/Advanced/40-bootNFS

   1 # !/bin/sh
   2 #
   3 # Copyright Matthias Hentges (c) 2005
   4 #
   5 # License: GPL (see http://www.gnu.org/licenses/gpl.txt for a copy of the GPL)
   6
   7 M_TITLE="Boot from NFS"
   8
   9 die() {
  10         echo "ERROR: $1" >/dev/tty0
  11         exec $SH_SHELL </dev/tty0 >/dev/tty0 2>&1
  12 }
  13
  14 # This function is activated by init.altboot by calling this script with the "run" option
  15 run_module() {
  16
  17         test -e /etc/altboot.func && . /etc/altboot.func || die "ERROR: /etc/altboot.func not found. Check your installation!"
  18
  19         # Mount /proc, etc
  20         init_rootfs
  21
  22         # Needed for NFS
  23         /etc/init.d/portmap start >/dev/tty1 2>&1 || die "/etc/init.d/portmap start failed!"
  24
  25         # For some reason NFS mounts hang if /e/i/networking is not run.
  26         # For the time beeing I'm too lazy to investigate ;)
  27         /etc/init.d/networking start || die "/etc/init.d/networking start failed!"
  28
  29         sleep 2
  30
  31         # After the PCMCIA service is started, an inserted WLAN card should automatically
  32         # activate itself.
  33         /etc/init.d/pcmcia start >/dev/null 2>&1 || die "/etc/init.d/pcmcia/start failed!"
  34
  35         nfs_host="`cat /etc/fstab | grep -v ^# | grep nfs | awk '{print $1}'|sed -n "s/\(.*\)\:\(.*\)/\1/p" `"
  36         nfs_mounts="`cat /etc/fstab | grep -v ^# | grep nfs | awk '{print $1}'`"
  37         nfs_mountpoints="`cat /etc/fstab | grep -v ^# | grep nfs | awk '{print $2}'`"
  38
  39         if test -z "$nfs_host"
  40         then
  41                 die "${C_RED}No configured NFS drives found in /etc/fstab$C_RESET"
  42
  43         fi
  44
  45         # WLAN with DHCP needs some time to get a lease, set up the routing, etc.
  46         echo -n "Waiting for WLAN"
  47         cnt=0
  48         while true
  49         do
  50                 if (ping -c 1 $nfs_host) >/dev/null 2>&1
  51                 then
  52                         echo " found"
  53                         break
  54                 else
  55                         if test "$cnt" = 30 -o "$cnt" = 60
  56                         then
  57                                 echo ""
  58                                 echo "WARNING: WLAN didn't activate in $cnt seconds!"
  59
  60                                 if test "$cnt" = 30
  61                                 then
  62                                         echo "Restarting udhcpc"
  63                                         killall udhcpc
  64                                         udhcpc -i wlan0 -H `cat /etc/hostname` >/dev/null 2>&1
  65                                 else
  66                                         die "Failed to activate WLAN!"
  67                                         break
  68                                 fi
  69                         else
  70                                 echo -n "."
  71                                 let cnt=$cnt+1
  72                         fi
  73                 fi
  74                 sleep 1
  75         done
  76
  77         if test "` echo "$nfs_mountpoints" |wc -l | tr -d " "`" -gt 1
  78         then
  79                 echo -e "Please select your NFS root:\n"
  80
  81                 cnt=1
  82                 for nfs_mount in $nfs_mountpoints
  83                 do
  84                         echo -e "\t[$cnt] $nfs_mount"
  85                         let cnt=$cnt+1
  86                 done
  87
  88                 echo ""
  89
  90                 while test -z "$selection"
  91                 do
  92                         stty echo
  93                         echo -n "Boot NFS root: "
  94                         read junk < /dev/tty1
  95
  96                         cnt=1
  97                         for nfs_mount in $nfs_mounts
  98                         do
  99                                 if test "$junk" = "$cnt"
 100                                 then
 101                                         selection="$nfs_mount"
 102                                 fi
 103                                 let cnt=$cnt+1
 104                         done
 105
 106                 done
 107         else
 108                 test -z "$nfs_mounts" && die "No NFS mounts configured in /etc/fstab!"
 109                 selection="$nfs_mounts"
 110         fi
 111
 112         mkdir -p /media/nfsroot || die "mkdir -p /media/nfsroot failed!"
 113
 114         echo -n "Mounting NFS root..."
 115         mount -t nfs "$selection" /media/nfsroot && echo ok || die "mount -t nfs "$selection" /media/nfsroot failed!"
 116
 117         # Use configured resolv.conf in the pivoted rootfs
 118         echo -n "Copying resolv.conf..."
 119         #cp /etc/resolv.conf /media/nfsroot/etc && echo ok || echo "FAILED"
 120
 121         check_target "/media/nfsroot"
 122
 123 }
 124
 125 case "$1" in
 126 title)  echo "$M_TITLE";;
 127 run)    run_module "$2";;
 128 esac
 129