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--- deb11:virtualboxvm [2022/09/24 12:15] – [Install Guest Additions on a Debian 11 host] Bernard Condrau
+++ deb11:virtualboxvm [2025/06/06 12:23] (current) – [Settings] Bernard Condrau
@@ Line 4: / Line 4: @@
   * After installing the Guest Additions, close VirtualBox and restart it under your user account
-===== Install Guest Additions on a Debian 11 host =====
+===== Install Guest Additions on a Debian 11 guest operating system =====
-  - The following steps need to be taken inside the VM
+  - The following steps need to be taken inside the VM after the operating system has been installed
   - Install the kernel headers, DKMS framework, and build tools<code>$ sudo apt update -y && sudo apt upgrade
 sudo apt install dkms linux-headers-$(uname -r) build-essential</code>
@@ Line 16: / Line 16: @@
   * [[https://kifarunix.com/install-virtualbox-guest-additions-on-debian-11/|Install VirtualBox Guest Additions on Debian 11]]
+===== Reboot (dead) vm =====
+  - ''vboxmanage list runningvms''
+  - ''vboxmanage controlvm <machine> acpipowerbutton''
+  - ''vboxmanage startvm <machine> --type=headless''
+==== Settings ====
+  * ''vboxmanage modifyvm <machine> --defaultfrontend headless''
+  * ''vboxmanage controlvm <machine> poweroff'' if the vm cannot be shut down gracefully

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