intallpkg.sh (tahpup) LN# 181-206 bypass tmpfs

# LN# 181-206 of /usr/local/petget/installpkg.sh (tahpup) - http://www.pearltrees.com/s243a/installpkg-sh-usr-local-petget/id20402080
#boot from flash: bypass tmpfs top layer, install direct to pup_save file...
elif [ $PUPMODE -eq 3 -o $PUPMODE -eq 7 -o $PUPMODE -eq 13 ];then
    # SFR: let user chose...
    if [ -f /var/local/petget/install_mode ] ; then
     IM="`cat /var/local/petget/install_mode`"
    else
     IMODE="savefile"
    fi
    [ "$IM" = "true" ] && IMODE="tmpfs" || IMODE="savefile"
    if [ "$IMODE" != "tmpfs" ]; then
     FLAGNODIRECT=1
     #100426 aufs can now write direct to save layer...
     #note: fsnotify now preferred not inotify, udba=notify uses whichever is enabled in module...
     busybox mount -t aufs -o remount,udba=notify unionfs / #remount aufs with best evaluation mode.
     FLAGNODIRECT=$?
     [ $FLAGNODIRECT -ne 0 ] && logger -s -t "installpkg.sh" "Failed to remount aufs / with udba=notify"
     if [ $FLAGNODIRECT -eq 0 ];then
      #note that /sbin/pup_event_frontend_d will not run snapmergepuppy if installpkg.sh or downloadpkgs.sh are running.
      while [ "`pidof snapmergepuppy`" != "" ];do
       sleep 1
      done
      DIRECTSAVEPATH="/initrd${SAVE_LAYER}" #SAVE_LAYER is in /etc/rc.d/PUPSTATE.
      rm -f $DIRECTSAVEPATH/pet.specs $DIRECTSAVEPATH/pinstall.sh $DIRECTSAVEPATH/puninstall.sh $DIRECTSAVEPATH/install/doinst.sh
     fi
    fi
fi