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--- other:win10wsl [2022/08/25 15:57]
jypeter [Disk usage]
+++ other:win10wsl [2022/08/29 14:27]
jypeter [Hyper-V requirements] Improved
@@ Line 36: / Line 36: @@
   * Install the [[other:win10apps#windows_terminal|Windows terminal]], because it will be one of the ways to open ''Ubuntu'' terminals, once ''Ubuntu'' is installed
+  * Know how to use copy-paste in a Powershell FIXME
   * It will be useful to be able to [[other:win10config#displaying_hidden_folders_and_files_and_the_files_extension|see hidden folders and files]]
   * Have at least some basic knowledge of Linux...
@@ Line 127: / 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 ====
+<WRAP center round tip 60%>
+You can skip reading this WSL //requirement// if you are installing WSL for the first time, and are therefor directly installing WSL 2
+Come back later if you have problems
+</WRAP>
+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 (e.g. [[https://docs.microsoft.com/en-us/windows/wsl/troubleshooting#error-0x80370102-the-virtual-machine-could-not-be-started-because-a-required-feature-is-not-installed|The virtual machine could not be started because a required feature is not installed]]), or if you are updating WSL 1 to WSL 2, type ''systeminfo'' in a PowerShell to check if your machine meets 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]].\\ You can have a look at the [[https://en.wikipedia.org/wiki/X86_virtualization|x86 virtualization]] wikipedia page if you are wondering what ''VT-x'' and ''VT-d'' means for //Intel// processors (''AMD-v'' and ''AMD IOMMU'' for //AMD//)
+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 **enable ''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 270: / Line 296: @@
 Description:    Ubuntu 20.04.4 LTS
 Release:        20.04
-Codename:       focal</code>
+Codename:       focal
+stdu@sadira034:/usr/lib/wsl/drivers$ cat /etc/*release*
+DISTRIB_ID=Ubuntu
+DISTRIB_RELEASE=20.04
+DISTRIB_CODENAME=focal
+DISTRIB_DESCRIPTION="Ubuntu 20.04.4 LTS"
+NAME="Ubuntu"
+VERSION="20.04.4 LTS (Focal Fossa)"
+ID=ubuntu
+ID_LIKE=debian
+PRETTY_NAME="Ubuntu 20.04.4 LTS"
+VERSION_ID="20.04"
+HOME_URL="https://www.ubuntu.com/"
+SUPPORT_URL="https://help.ubuntu.com/"
+BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
+PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
+VERSION_CODENAME=focal
+UBUNTU_CODENAME=focal</code>
     * [[other:win10wsl#updating_wsl_and_ubuntu|More details about updating WSL and/or Ubuntu]] (you can safely skip this for now)
@@ Line 1009: / Line 1053: @@
 ===== Miscellaneous =====
+==== Upgrading WSL 1 to WSL 2 ====
+<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>
+=== Determining which version of WSL is installed ===
+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
+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
+  * ''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
+Recherche de mises à jour en cours... Veuillez patienter
+Aucune mise à jour n’est disponible.
+Version du noyau : 5.10.102.1</code>
+  * ''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
+Activez la fonctionnalité Windows de plateforme de machine virtuelle et assurez-vous que la virtualisation est activée dans le BIOS.
+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 ====
   * Determining from **inside** the running Linux if you are using WSL (or another type of virtual machine)\\ <code>$ systemd-detect-virt

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