From c2fb3eada9cb0e4c7049aa1fe7f5027765bd6cb6 Mon Sep 17 00:00:00 2001
From: Frits Sweijen <fritssweijen@hotmail.com>
Date: Tue, 23 Mar 2021 13:49:30 +0100
Subject: [PATCH] Update README.md

---
 README.md | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 4244c99..ff56a23 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,19 @@ Singularity
 ===========
 HBA
 ---
-Singularity.lofar_hba_sksp_base - part 1 of the recipe for SKSP focussed images, by Frits Sweijen.
+Singularity.lofar_hba_sksp_base - part 1 of the recipe for SKSP focussed images, slow moving dependencies, by Frits Sweijen.
 
-Singularity.lofar_hba_sksp - part 2 of the recipe for SKSP focussed images, by Frits Sweijen.
+Singularity.lofar_hba_sksp - part 2 of the recipe for SKSP focussed images, faster moving software, by Frits Sweijen.
+
+To build a working container, first build the base container by running
+
+    sudo singularity build lofar_hba_sksp_base.sif Singularity.lofar_hba_sksp_base
+
+Then build the main container by first pointing the second recipe towards the base container using
+
+    Bootstrap: localimage
+    From: lofar_hba_sksp_base.sif
+
+followed by
+
+    sudo singularity build lofar_hba_sksp.sif Singularity.lofar_hba_sksp
-- 
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