#====================================== # 11.1) Check for NFS root #-------------------------------------- if [ ! -z "$NFSROOT" ];then IFS="," ; for i in $NFSROOT;do field=0 IFS=";" ; for n in $i;do case $field in 0) nfsRootServer=$n ; field=1 ;; 1) nfsRootDevice=$n ; field=2 esac done done Echo "Mounting NFS root system: $nfsRootServer:$nfsRootDevice..." imageRootDevice="-o nolock,rw $nfsRootServer:$nfsRootDevice" imageRootName="NFSRoot-System" systemIntegrity="clean" fi #====================================== # 11.2) Check for NBD root #-------------------------------------- if [ ! -z "$NBDROOT" ];then if ! modprobe nbd;then systemException "Failed to load network blk device module" "reboot" fi IFS="," ; for i in $NBDROOT;do field=0 IFS=";" ; for n in $i;do case $field in 0) nbdServer=$n ; field=1 ;; 1) nbdPort=$n ; field=2 ;; 2) nbdDevice=$n ; field=3 ;; 3) nbdswapPort=$n ; field=4 ;; 4) nbdswapDevice=$n ; field=5 esac done done if [ -z "$nbdDevice" ];then nbdDevice="/dev/nbd0" fi if [ -z "$nbdswapDevice" ];then nbdDevice="/dev/nbd1" fi if [ -z "$nbdswapPort" ];then nbdswapPort="9210" fi Echo "Mounting NBD root system: $nbdServer $nbdPort [$nbdDevice]..." if ! /usr/sbin/nbd-client $nbdServer $nbdPort $nbdDevice;then systemException "Failed to setup $nbdDevice device" "reboot" fi # /.../ # try to get swap from the server if we dont have # enough ram (less than 48M) # ---- min_ram=49152 real_ram=$(cat /proc/meminfo |grep MemTotal|tr -d " [a-z][A-Z]:") if [ ${real_ram} -lt ${min_ram} ];then Echo "NBD: memory is below required 48M" Echo "NBD: Mounting NBD swap: $nbdServer $nbdPort [$nbdDevice]..." if ! /usr/sbin/nbd-client $nbdServer $nbdswapPort $nbdswapDevice then systemException "Failed to setup $nbdswapDevice device" "reboot" fi /sbin/mkswap $nbdswapDevice || true /sbin/swapon $nbdswapDevice || true fi imageRootDevice=$nbdDevice probeFileSystem $imageRootDevice Echo "Filesystem of remote root system is: $FSTYPE" if test "$FSTYPE" = "squashfs";then export UNIONFS_CONFIG="/dev/ram1,"$imageRootDevice",aufs" fi imageRootName="NBDRoot-System" systemIntegrity="clean" fifi