From 763d4fe6405b861e4c58903a780ad2c3c8a33904 Mon Sep 17 00:00:00 2001
From: Benoit Lelandais <41573600+lelandaisb@users.noreply.github.com>
Date: Mon, 2 Oct 2023 11:26:49 +0200
Subject: [PATCH] Update spack-mirroring.md

---
 docs/spack-mirroring.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/spack-mirroring.md b/docs/spack-mirroring.md
index d812c7a..37535d6 100644
--- a/docs/spack-mirroring.md
+++ b/docs/spack-mirroring.md
@@ -18,10 +18,10 @@ Activate the Spack environment used to build the image and create the mirror.
 
 *Step 3*
 
-Go to the `/spack/var/spack`, tar the cache directory of the previously created mirror in your local file system through the mounting point, `/mgx-mirror`in this example.
+Go to the `/spack/var/spack`, tar the cache directory of the previously created mirror (with h option to follow symlinks) in your local file system through the mounting point, `/mgx-mirror`in this example.
 
     cd /spack/var/spack
-    tar cvfz /mgx-mirror/cache.tar.gz cache
+    tar hcvfz /mgx-mirror/cache.tar.gz cache
 
 Then, you can exit from the container and go the previously mounted directory on your computer, `/tmp/mgx-mirror`in this example.
 Do not forget to download the last release of [spack LIHPC-CG recipes](https://github.com/LIHPC-Computational-Geometry/spack_recipes/releases) in the same directory.