diff --git a/doc/openvpn.md b/doc/openvpn.md
index 1f328ec..6ae297e 100644
--- a/doc/openvpn.md
+++ b/doc/openvpn.md
@@ -7,6 +7,5 @@ sudo apt update
 
 * install
 ```
-sudo apt update
 sudo apt install openvpn --no-install-recommends
 ```
diff --git a/doc/osmconvert.md b/doc/osmconvert.md
new file mode 100644
index 0000000..5f93838
--- /dev/null
+++ b/doc/osmconvert.md
@@ -0,0 +1,11 @@
+# Setup osmconvert
+
+* update Apt repository cache
+```
+sudo apt update
+```
+
+* install
+```
+sudo apt install osmctools --no-install-recommends
+```