bootnfs

#!/bin/bash

NAME=bootnfs
VERSION=0.1

nfsserver=172.16.2.1
nfsroot=/exports/ro/aoe-vblade
declare -i launchcon=0
declare kernel
announce=$NAME
user=$USER

function help()
{
    echo -e "\`$NAME' boots a set of nodes via NFS root\n\n"	\
	    "Usage: $NAME [num]\n"				\
	    " -s <nfsserver>    NFS server name\n"		\
	    " -r <rootpath>     NFS root path\n"		\
	    " -k <image>	Kernel image\n"			\
	    " -a <announce msg> set console announce message\n"	\
	    " -u <user>         user allocating nodes\n"	\
	    " -c                launch console window\n"	\
	    " -h                show this help statement\n"	\
	    " -v                show version\n"
}

function setfdtdate
{
    local now=$(date -u)
    local year=$(date -u -d "$now" +"%-Y")
    local fdtdate="$(printf 'fdt mknode / rtc && fdt set /rtc second "[00 00 00 %02x]" && fdt set /rtc minute "[00 00 00 %02x]" && fdt set /rtc hour "[00 00 00 %02x]" && fdt set /rtc month "[00 00 00 %02x]" && fdt set /rtc mday "[00 00 00 %02x]" && fdt set /rtc year "[00 00 %02x %02x]"\n' `date -u -d "$now" +"%-S %-M %-H %-m %-d"` $(( $year / 256 )) $(( $year % 256 )))"
    echo "$1" | khdo write "$fdtdate"
    return 1;
}

function setip
{
    ipcmd="uni2ip eth1ip \"\$bgp_rank 192.168.0.2 192.168.31.255\" && setenv eth1 \"\$eth1ip 255.255.224.0\""
    echo "$1" | khdo write "$ipcmd"
    return 1;
}

function setannounce
{
    echo "$1" | khdo write "setenv kh_announce $announce"
}

optcount=0;
while getopts "s:r:k:a:u:chv" OPT
do
  case $OPT in
    ("s") nfsserver="$OPTARG"; (( optcount+=2 ));;
    ("r") nfsroot="$OPTARG"; (( optcount+=2 ));;
    ("k") kernel="$OPTARG"; (( optcount+=2 ));;
    ("a") announce="$OPTARG"; (( optcount+=2 ));;
    ("u") user="$OPTARG"; (( optcount+=2 ));;
    ("c") launchcon=1; (( optcount+= 1 ));;
    ("v") echo $VERSION; return 1;;
    ("h") help; exit -1;;
  esac
done

shift $optcount

# on NFS we run with one external and one internal network
setboot="setenv bootargs \"console=bgtty0,\$bgtty_sendid,\$bgtty_rcvid,\$bgtty_dest init=/init ip=\$eth0ip:\$serverip:\$sitegate:\$sitemask::eth0:off nfsroot=$nfsserver:$nfsroot,nolock,proto=tcp\" && setenv ramfsarg -"

if [[ -n $kernel && ! -a $kernel ]]
then
  echo "Kernel image $kernel incorrect"
  exit -1
fi

a0="$(khget -x $user $1)"
if (( $? != 0 ))
then
  echo "Node allocation failed ($a0)"
  exit -1
fi

if (( launchcon != 0 )); then 
  echo "$a0" | khdo concmd "khxcon %con% &"
fi

if [[ -n $kernel ]]
then
  echo "$a0" | khdo loadkernel $kernel
fi

setfdtdate "$a0"
setip "$a0"
setannounce "$a0"
echo "$a0" | khdo write "$setboot && run boot"
echo "$a0"