diff --git a/README.md b/README.md
index 4db8f59..330f2e6 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,19 @@
 3. ```git clone https://github.com/nomadics9/nixcfg.git```
 4. ```cd nixcfg```
 5. ```sudo bash install.sh``` and follow the installer.
+* Known issue. sometimes you will get ```/boot/efi``` is not mounted partition error. In that case.
+<br>
+<br>
+    * One liner, just change YOUR-HOSTNAME accordingly to your hostname <br>
+```sed -i 's|boot.loader.efi.efiSysMountPoint = "/boot/efi";|boot.loader.efi.efiSysMountPoint = "/boot";|' ./hosts/YOUR-HOSTNAME/configuration.nix```
+<br>
+<br>
+or
+<br>
+<br>
+    * Manually <br>
+```nano ./hosts/YOUR-HOSTNAME/configuration.nix``` change line 33 from ```boot.loader.efi.efiSysMountPoint = "/boot/efi";``` path to just <b>```/boot```</b>
+
 
 ## Configurations - optional
 For user packages you will find them in ```home/nomad/home.nix```. You can remove all packages here or keep them nothing is dependent on them.