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--- other:win10wsl [2022/08/26 11:48] – [The basics before starting] placeholder for copy-paste jypeter
+++ other:win10wsl [2022/08/29 15:49] – [Hyper-V requirements] Improved jypeter
@@ Line 128: / Line 128: @@
   * Disk size after upgrading to //Ubuntu 20.04.4 LTS// with ''sudo apt update && sudo apt upgrade''\\ ''-rwxrwxrwx 1 root root 2.6G Aug 24 15:24 /mnt/c/Users/jypeter/AppData/Local/Packages/CanonicalGroupLimited.UbuntuonWindows_79rhkp1fndgsc/LocalState/ext4.vhdx''
+==== Hyper-V requirements ====
+WSL 2 needs the //Virtual Machine Platform// to be enabled on your computer. If you have never used WSL before, you can probably go directly to the [[other:win10wsl#base_installation|Base installation]] section and ''wsl'' should install everything correctly
+If you have problems, or if you are updating WSL 1 to WSL 2, use ''systeminfo'' to check the [[https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/hyper-v-requirements?source=recommendations#verify-hardware-compatibility|Hyper-V requirements]]
+If you get a ''No'' for one of the ''Hyper-V requirements'', check the //virtualization// settings in your [[other:bios#entering_the_bios|computer BIOS]]
+Example: HP laptop with an **Intel** CPU, and **virtualization not activated in the BIOS**
+  * //Hyper-V// section of the ''systeminfo'' output
+    * <code>Configuration requise pour Hyper-V:         Extensions de mode du moniteur d’ordinateur virtuel : Oui
+                                            Virtualisation activée dans le microprogramme : Non
+                                            Traduction d’adresse de second niveau : Oui
+                                            Prévention de l’exécution des données disponible : Oui</code>
+  * //Virtualization// section of the [[other:bios#entering_the_bios|HP BIOS]]: you need to select ''Virtualization Technology (VTx)'' and ''Virtualization Technology for Directed I/O (VTd)'' in the BIOS, save the settings and finish booting
+    * {{ :other:hp_bios_vtx_vtd.png?direct&600 |}}
+  * //Hyper-V// section of the ''systeminfo'' output with **virtualization activated in the BIOS** (after activation and reboot)
+    * <code>                                            Virtualisation activée dans le microprogramme : Oui</code>
 ===== Base installation =====
@@ Line 1029: / Line 1047: @@
 ===== Miscellaneous =====
-==== Updating WSL 1 to WSL 2 ====
+==== Upgrading WSL 1 to WSL 2 ====
-On a system where WSL 2 was installed directly
+<WRAP center round tip 60%>
+You will be able to run existing WSL 1 installations with WSL 2, so upgrading should not be a problem!
+</WRAP>
-<code>PS C:\Users\jypeter> wsl --update
-Recherche de mises à jour en cours... Veuillez patienter
-Aucune mise à jour n’est disponible.
-Version du noyau : 5.10.102.1
-PS C:\Users\jypeter> wsl --status
+=== Determining which version of WSL is installed ===
-Distribution par défaut : Ubuntu
-Version par défaut : 2
-La dernière mise à jour effectuée du Sous-système Windows pour Linux date du 24/08/2022
+If you have never used WSL on a computer, WSL 2 will be installed directly when you follow the [[other:win10wsl#base_installation|Base installation]] steps
-Les mises à jour WSL automatiques sont activées.
-Version du noyau : 5.10.102.1</code>
+You can determine if your installed Linux distributions are running on WSL 1 or WSL 2 by typing ''wsl -l -v'' in a PowerShell, but if you are not sure if you are currently using WSL 1 or WSL 2 for running Linux, you can check if [[https://github.com/MicrosoftDocs/WSL/issues/1599|Is there an easy (PowerShell?) way to get more information about WSL?]] has been answered, or make the following checks
-On a system where WSL 1 was initially installed
+  * ''wsl --update'' will give the same output (i.e. the installed Linux kernel version) for both WSL 1 and WSL 2
+    * <code>PS C:\Users\jypeter> wsl --update
-<code>PS C:\Users\jypeter> wsl --update
 Recherche de mises à jour en cours... Veuillez patienter
 Aucune mise à jour n’est disponible.
-Version du noyau : 5.10.102.1
+Version du noyau : 5.10.102.1</code>
-PS C:\Users\jypeter> wsl --status
+  * ''wsl --status'' will display again the kernel version if you already have WSL 2, but **will display a link to the WSL installation page if you are running WSL 1**: https://aka.ms/wsl2-install
+    * <code>PS C:\Users\jypeter> wsl --status
 Distribution par défaut : Ubuntu
 Version par défaut : 2
@@ Line 1060: / Line 1073: @@
 Pour plus d’informations, rendez-vous sur https://aka.ms/wsl2-install</code>
+=== Prerequisites ===
+  * If WSL 1 is already running, you should have no problem with the [[other:win10wsl#prerequisites|disk and memory requirements]]
+  * For WSL 2, you also need to meet the [[other:win10wsl#hyper-v_requirements|Hyper-V requirements]]
+=== Updating! ===
+[[https://docs.microsoft.com/en-us/windows/wsl/install-manual#step-3---enable-virtual-machine-feature|Activate the Virtual Machine Platform]] (just the //Step 3// instructions) and reboot the computer
+After rebooting, go back to the [[other:win10wsl#determining_which_version_of_wsl_is_installed|Determining which version of WSL is installed]] section above, and check that you are now using WSL 2
 ==== Potentially useful stuff ====