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-rw-r--r--rrdtool/README.txt5
1 files changed, 4 insertions, 1 deletions
diff --git a/rrdtool/README.txt b/rrdtool/README.txt
index 1ea5cad4c..ba24e1bc6 100644
--- a/rrdtool/README.txt
+++ b/rrdtool/README.txt
@@ -4,4 +4,7 @@ This directory contains a tool that allows to identify anomalies and similaritie
Prerequisite
- rrdtool (https://oss.oetiker.ch/rrdtool/)
-- apt-get install rrdtool
+
+If you have Ubuntu-based systems you need to do
+- sudo apt-get install rrdtool librrd-dev
+