Moved /tmp folder to tmpfs

Author: assrinivasan

files/initramfs-tools/union-mount.j2

@@ -212,6 +212,9 @@ mkdir -p ${rootmnt}/boot
 mkdir -p ${rootmnt}/host/$image_dir/boot
 mount --bind ${rootmnt}/host/$image_dir/boot ${rootmnt}/boot
 
+## Mount the /tmp directory as tmpfs
+mount -t tmpfs -o rw,nosuid,nodev tmpfs ${rootmnt}/tmp
+
 ## Mount loop device or tmpfs for /var/log
 if $logs_inram; then
     # NOTE: some platforms, when reaching initramfs stage, have a small