#!/bin/ash
#181011b sfs
param() { egrep -qo " $1( |\$)" /proc/cmdline; }
value() { egrep -o "(^| )$1=[^ ]+" /proc/cmdline | cut -d= -f2; } #sfs
[ "`value overlay`" ] && m="AUFS-RAM"
[ "`value dir`" ] && m="AUFS-RAM"
param changes && m="AUFS-RAM"
[ "`value changes`" ] && m="AUFS"
param ofs && m="OFS-RAM"
[ "`value ofs`" ] && m="OFS"
[ "$m" ] && echo "$m" || echo FULL