diff --git a/getstarted/disk.md b/getstarted/disk.md
index eddc09c..697a9ae 100644
--- a/getstarted/disk.md
+++ b/getstarted/disk.md
@@ -2,7 +2,7 @@
 title: Get started with Phyllome OS
 description: 
 published: true
-date: 2021-11-25T14:44:31.847Z
+date: 2021-11-26T16:02:39.694Z
 tags: 
 editor: markdown
 dateCreated: 2021-11-13T11:37:31.498Z
@@ -53,6 +53,15 @@ Open the terminal and run the following script as a regular user:
 
 ![post-install-conf-1.png](/post-launch/post-install-conf-1.png)
 
+### Update GRUB and reboot
+
+Unfortunately, the GRUB config won't correctly update during the kickstart phase, so it has to be done manually.
+
+```
+sudo grub2-mkconfig -o /boot/grub2/grub.cfg
+```
+When the is done, please reboot: `sudo reboot`
+
 ## Install and use a guest operating system
 
 Generally speaking, installing your favorite guest operating system inside Phyllome OS requires that you fetch an official ISO from the editor of the said operating system, that you make it accessible to `libvirt` and that you go through the installation.