Changeset 737 in MondoRescue for branches/stable/mindi

Timestamp:

Aug 3, 2006, 8:49:44 PM (18 years ago)

Author:

Bruno Cornec

Message:

Big NFS+PXE migration: start-nfs is not created by mondoarchive, but on the fly by init during restore. This allows more flexibility to restore through NFS a backup created on disks e.g. and simplify code.

File:

• branches/stable/mindi/rootfs/sbin/init (modified) (2 diffs)

branches/stable/mindi/rootfs/sbin/init

@@ -307 +307 @@
 # pipe vgscan's output, strip it, run 'vgchange' on its output, etc.etc.
     LogIt "LVM's have been started."
-}
-
-
-
-StartNfs() {
-    # using mount -o nolock avoids portmap requirement
-    #if which portmap > /dev/null 2> /dev/null ; then
-        #LogIt "Running portmap"
-    #portmap
-        #[ "$?" -eq "0" ] && LogIt "Portmap started OK" || LogIt "Portmap error"
-        if [ -e "/sbin/start-nfs" ] ; then
-            chmod 755 /sbin/start-nfs
-        LogIt "Starting NFS..."
-            /sbin/start-nfs
-        fi
-    #fi
 }
 
@@ -481 +465 @@
 fi
 
-#if [ -e "/tmp/2880.siz" ] ; then
-#    HandleCDROMorFloppies
-#el
+#
+# Create NFS configuration
+#
+cat > /sbin/start-nfs << EOF
+#!/bin/sh
+#
+# number of ping
+#
+ipcount=3
+
+# Get info from config file
+ipdev=`grep nfs-dev /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+ipaddress=`grep nfs-client-ipaddr /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+ipnetmask=`grep nfs-client-netmask /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+ipbroadcast=`grep nfs-client-broadcast /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+ipgateway=`grep nfs-client-defgw /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+ipconf=""
+nfsmount=`grep nfs-server-mount /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+imgname=`grep iso-prefix /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+if [ "$imgname" = "" ]; then
+    imgname="mondorescue"
+fi
+dirimg=`grep nfs-server-path /tmp/mondo-restore.cfg | cut -d' ' -f2-`
+if [ "$dirimg" = "" ]; then
+    dirimg="/"
+fi
+
+# info from cmdline are predominent
+for i in `cat /proc/cmdline` ; do
+    echo $i | grep -qi ping= && ipcount=`echo $i | cut -d= -f2`
+    echo $i | grep -qi ipconf= && ipconf=`echo $i | cut -d= -f2`
+    echo $i | grep -qi nfsmount= && nfsmount=`echo $i | cut -d= -f2`
+    echo $i | grep -qi prefix= && imgname=`echo $i | cut -d= -f2`
+done
+
+if [ $ipdev = "" ] && [ $ipconf = "" ]; then
+    # No network configuration neither stored during archive
+    # nor on cmdline so no network wanted => exiting
+    exit 0
+else
+    LogIt "Starting Network..."
+fi
+
+# Activate loobback
+ifconfig lo 127.0.0.1
+
+echo "$ipconf" | grep -q "dhcp"
+if [ $? -eq 0 ]; then
+    ipdev=`echo $ipconf | cut -d: -f1`
+    echo "Making DHCP request on $ipdev"
+    udhcpc -i $ipdev
+else
+    if [ "$ipconf" != "" ]; then
+        ipdev=`echo $ipconf | cut -d: -f1`
+        ipaddress=`echo $ipconf | cut -d: -f2`
+        ipnetmask=`echo $ipconf | cut -d: -f3`
+        ipbroadcast=`echo $ipconf | cut -d: -f4`
+        ipgateway=`echo $ipconf | cut -d: -f5`
+    fi
+    echo "Configuring $ipdev statically ($ipaddress/$ipnetmask)"
+    ifconfig $ipdev $ipaddress netmask $ipnetmask broadcast $ipbroadcast
+    route add default gw $ipgateway
+fi
+
+# ping server helps waking interface up
+LogIt "Pinging NFS server..."
+nfs_server_ipaddr=`echo $nfsmount | cut -d: -f1`
+ping -c $ipcount $nfs_server_ipaddr 
+
+# Finally mounts the NFS share
+LogIt "Mounting NFS share ($nfsmount) on /tmp/isodir..."
+mount -t nfs -o nolock $nfsmount /tmp/isodir
+
+LogIt "Mounting NFS image $imgname-1.iso in $dirimg on /mnt/cdrom in loopback"
+losetup /dev/loop7 /tmp/isodir/$dirimg/$imgname-1.iso
+mount -o ro -t iso9660 /dev/loop7 /mnt/cdrom
+EOF
+chmod 755 /sbin/start-nfs
+
 if [ "`grep -i 'tape ' /tmp/mondo-restore.cfg`" ] || [ "`grep -i udev /tmp/mondo-restore.cfg`" ] ; then
-        HandleTape
+    HandleTape
     ExtractDataDisksAndLoadModules
-elif [ -e "/sbin/start-nfs" ] && [ "`grep -i pxe /proc/cmdline`" ]; then
-    StartNfs
-    imgname=`grep iso-prefix /tmp/mondo-restore.cfg | cut -d' ' -f2-`
-    if [ "$imgname" = "" ]; then
-        imgname="mondorescue"
-    fi
-    if [ "`grep -i prefix /proc/cmdline`" ] ; then
-        for i in `cat /proc/cmdline` ; do
-            if [ "`echo $i | grep -i prefix`" ] ; then
-                imgname=`echo $i | cut -d'=' -f2`
-            fi
-        done
-    fi
-    dirimg=`grep nfs-server-path /tmp/mondo-restore.cfg | cut -d' ' -f2-`
-    if [ "$dirimg" = "" ]; then
-        dirimg="/"
-    fi
-    LogIt "Mounting NFS image $imgname-1.iso in $dirimg on /mnt/cdrom in loopback"
-    losetup /dev/loop7 /tmp/isodir/$dirimg/$imgname-1.iso
-    mount -o ro -t iso9660 /dev/loop7 /mnt/cdrom
+elif [ "`grep -i pxe /proc/cmdline`" ]; then
+    /sbin/start-nfs
+
     # Simulate a local CD
     echo "/mnt/cdrom" > /tmp/CDROM-LIVES-HERE
-        CD_MOUNTED_OK=yes
+    CD_MOUNTED_OK=yes
     ExtractDataDisksAndLoadModules
 else
     HandleCDROMorFloppies
     ExtractDataDisksAndLoadModules
-    if [ -e "/sbin/start-nfs" ]; then
-        StartNfs
-    fi
+    /sbin/start-nfs
 fi
 res=$?