diff --git a/doc/ubuntu-upgrade.txt b/doc/ubuntu-upgrade.txt
new file mode 100644
index 0000000..b08f4eb
--- /dev/null
+++ b/doc/ubuntu-upgrade.txt
@@ -0,0 +1,5 @@
+/etc/update-manager/release-upgrades
+
+do-release-uprgade --check-dist-upgrade-only
+sudo apt install update-manager-core
+sudo do-release-upgrade