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--- other:win10wsl [2022/08/29 14:36]
jypeter [Upgrading WSL 1 to WSL 2] Improved
+++ other:win10wsl [2022/08/31 11:52]
jypeter [Creating a backup]
@@ Line 3: / Line 3: @@
 [[other:index#windows_10_notes|Other Windows 10 related notes]]
-<note warning>
+<WRAP center round important 60%>
   * What is described on this page was tested with [[https://docs.microsoft.com/en-us/windows/wsl/compare-versions#whats-new-in-wsl-2|WSL 2]].\\ **WSL 2** is available in [[https://docs.microsoft.com/en-us/windows/wsl/install-manual#step-2---check-requirements-for-running-wsl-2|Windows 11 or Windows 10, Version 1903, Build 18362 or later]]
   * You can also check JYP's [[other:win10_wsl_1|original WSL 1 instructions]]
+    * ...but even **if you need WSL 1, you should use this page for installing WSL, and then switch to WSL 1** with [[https://docs.microsoft.com/en-us/windows/wsl/basic-commands#set-default-wsl-version|--set-default-version]] or [[https://docs.microsoft.com/en-us/windows/wsl/basic-commands#set-wsl-version-to-1-or-2|--set-version]]
   * The user can choose to install Linux using **WSL 1 or WSL 2**
     * **WSL 2 should be your default choice**
     * If you have doubts, check the [[https://docs.microsoft.com/en-us/windows/wsl/compare-versions|differences between WSL1 and WSL2]] and read [[https://docs.microsoft.com/en-us/windows/wsl/compare-versions#exceptions-for-using-wsl-1-rather-than-wsl-2|Exceptions for using WSL 1 rather than WSL 2]] before choosing
-</note>
+</WRAP>
+<WRAP center round tip 60%>
+The commands on this page have to be typed:
+  * either in **Windows PowerShell terminals**
+  * or in **bash terminals running in WSL**
+It should be clear enough which type of terminal you have to use
+</WRAP>
@@ Line 35: / Line 45: @@
 Once you have verified that your Windows is recent enough, you should also:
-  * Install the [[other:win10apps#windows_terminal|Windows terminal]], because it will be one of the ways to open ''Ubuntu'' terminals, once ''Ubuntu'' is installed
+  * Your should really **install the [[other:win10apps#windows_terminal|Windows terminal]]**, because it will be one of useful the ways to open ''Ubuntu'' terminals, once ''Ubuntu'' is installed
-  * Know how to use copy-paste in a Powershell FIXME
+  * **Know how to use copy-paste** in:
-  * It will be useful to be able to [[other:win10config#displaying_hidden_folders_and_files_and_the_files_extension|see hidden folders and files]]
+    * a //Windows Terminal//: [[https://docs.microsoft.com/en-us/windows/terminal/selection|Selecting text in Windows Terminal]]
-  * Have at least some basic knowledge of Linux...
+    * an old ''cmd'' command prompt or 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 some basic knowledge of Linux**...
     * Get some [[other:newppl:starting#useful_documentation_for_beginners|basic Linux documentation]] if required
 ==== Computer CPU and memory ====
@@ Line 127: / Line 139: @@
   * 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''
+    * Size of the [[other:win10wsl#creating_a_backup_of_the_linux_running_in_wsl|backup tar file]] of this installation, generated with ''%%wsl --export%%'': ~1.4 Gb
 ==== Hyper-V requirements ====
@@ Line 352: / Line 365: @@
 ===== After the base installation =====
-Once you have completed the base installation steps, you'll get a Ubuntu machine, with a //root// and user account (pre-configured to use ''sudo'' for commands that need root access) and lots of pre-installed applications (but no graphics).
+After completing the base installation steps, you get a //Ubuntu// machine with:
+  * a //root// and //user// account
+    * the //user// account is pre-configured to use ''sudo'' for commands that need root access
+  * pre-installed base Linux applications
+    * **no** graphics
+    * enough to play a bit with a Linux computer and test that the installation is working, but not enough to do some real work
 ==== Opening a terminal ====
@@ Line 482: / Line 500: @@
 ==== Ubuntu packages installed ====
-<code>$ dpkg --list
+<code>$ dpkg --list | head -n 10
 Desired=Unknown/Install/Remove/Purge/Hold
 | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
 |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
-||/ Name                  Version         Architecture    Description
+||/ Name                           Version                           Architecture Description
-+++-=====================-===============-===============-================================================
++++-==============================-=================================-============-===============================================================================
-ii  accountsservice       0.6.45-1ubuntu1 amd64           query and manipulate user account information
+ii  accountsservice                0.6.55-0ubuntu12~20.04.5          amd64        query and manipulate user account information
-ii  acl                   2.2.52-3build1  amd64           Access control list utilities
+ii  adduser                        3.118ubuntu2                      all          add and remove users and groups
-ii  acpid                 1:2.0.28-1ubunt amd64           Advanced Configuration and Power Interface event
+ii  alsa-topology-conf             1.2.2-1                           all          ALSA topology configuration files
-ii  adduser               3.116ubuntu1    all             add and remove users and groups
+ii  alsa-ucm-conf                  1.2.2-1ubuntu0.13                 all          ALSA Use Case Manager configuration files
+ii  apparmor                       2.13.3-7ubuntu5.1                 amd64        user-space parser utility for AppArmor
-[...]
-ii  xterm                 330-1ubuntu2    amd64           X terminal emulator
-ii  xxd                   2:8.0.1453-1ubu amd64           tool to make (or reverse) a hex dump
-ii  xz-utils              5.2.2-1.3       amd64           XZ-format compression utilities
-ii  zerofree              1.0.4-1         amd64           zero free blocks from ext2, ext3 and ext4 file-s
-ii  zlib1g:amd64          1:1.2.11.dfsg-0 amd64           compression library - runtime
-$ dpkg --list > /mnt/c/Scratch/jyp/pkg_initial_201601.txt
+$ dpkg --list > /mnt/c/Scratch/jypeter/Ubuntu_Installed_List_`date +"%y-%m-%d"`.txt
-$ wc -l /mnt/c/Scratch/jyp/pkg_initial_201601.txt
+$ wc -l /mnt/c/Scratch/jypeter/Ubuntu_Installed_List_*.txt
- /mnt/c/Scratch/jypeter/pkg_initial_201601.txt</code>
+ /mnt/c/Scratch/jypeter/Ubuntu_Installed_List_22-08-29.txt</code>
-Full (example) list of installed packages: {{:other:pkg_initial_201601.txt|pkg_initial_201601.txt}}
+Full (example) list of installed packages: {{ :other:ubuntu_installed_list_22-08-29.txt |}}
 ==== Update ubuntu ====
@@ Line 539: / Line 551: @@
 en_US.UTF8
 </code>
 ==== Package management ====
@@ Line 547: / Line 561: @@
   * Install the **synaptic** package manager: ''aptitude install synaptic''
     * [[https://doc.ubuntu-fr.org/synaptic|details]] (fr)
 === Useful commands ===
@@ Line 553: / Line 568: @@
   * ''dpkg -L package_name'': list files installed from ''package_name''
   * ''dpkg -S path/command'': name of the package used to install ''path/command''
 === Example ===
@@ Line 722: / Line 738: @@
  * [[https://linoxide.com/how-to-clear-apt-cache/|How to Clear Apt Cache]]
 ===== Advanced configuration =====
@@ Line 946: / Line 964: @@
   * [[https://github.com/Microsoft/WSL/issues/2636|Automount additonal filesystems from fstab]]
   * [[https://gist.github.com/sgtoj/f82990bcd9e89db49b84e2d2e70b281d|Ubuntu for Windows: Mounting C: Drive to WSL's Root]]
 ==== Rebooting WSL ====
@@ Line 986: / Line 1005: @@
   * <wrap hi>Regular Windows folders</wrap> where you store data used by WSL: you can use ''tar'' in a Linux terminal, as above, or use any usual way of backing up Windows files (drag and drop, some specific [[other:win10apps#backup_software|backup software]])
-  * <wrap hi>The **full** Linux/Ubuntu installation</wrap> running in WSL (based on [[https://docs.microsoft.com/en-us/windows/wsl/faq#how-can-i-back-up-my-wsl-distros-or-move-them-from-one-drive-to-another|How can I back up my WSL distros?]]). The following steps will save the full installation in a tar file, that can be used later for restoring the full installation (//restoration// not tested yet)
-    * Open a **Windows terminal** (preferably a //PowerShell// if you need easy copy/paste)\\ The //Windows// terminal is where you will type the ''wsl'' commands shown below
-    * Determine the name of the current Linux installation used in WSL (and see if it is running, and using //WSL 1// or //WSL 2//)
-      * <code>> wsl --list --all
-Distributions du sous-système Windows pour Linux :
-Ubuntu (par défaut)
-> wsl --list --verbose
-  NAME      STATE           VERSION
-* Ubuntu    Running         1</code>
-    * [[other:win10wsl#rebooting_wsl|Stop WSL+Linux]]
-      * <code>> wsl --list --verbose
-  NAME      STATE           VERSION
-* Ubuntu    Running         1
-> wsl --shutdown
-> wsl --list --verbose
-  NAME      STATE           VERSION
-* Ubuntu    Stopped         1</code>
-    * Export the current Linux to a //tar// file:
-      * <code> > wsl --export Ubuntu C:\Scratch\<your_login>\<your_login>_ubuntu-<ubuntu_version>-full_<some_date>.tar</code>
-    * You can optionally open a new terminal (this will start again WSL+Ubuntu) to get some information about the created file (size and number of saved files/directories), and compress it in order to save some disk space
-      * <code>$ cd /mnt/c/Scratch/<your_login>
-$ ls -ltrh *ubuntu*tar*
-M Jan 21  2020 <your_login>_200121.tar.gz
-.8G Aug 22  2020 <your_login>-16.04-full_200822.tar
-.4G Feb 24 14:06 <your_login>-20-04-1-full_210224.tar
-# Determine the number of files/directories in the backup
-$ tar tvf <your_login>-20-04-1-full_210224.tar | wc -l
-$ gzip *ubuntu*.tar
-$ ls -ltrh *ubuntu*tar*
-M Jan 21  2020 <your_login>_200121.tar.gz
-.2G Aug 22  2020 <your_login>-16.04-full_200822.tar.gz
-.8G Feb 24 14:06 <your_login>-20-04-1-full_210224.tar.gz
-</code>
 ==== Restoring a WSL backup ====
@@ Line 1044: / Line 1023: @@
     * Can we restore (//clone//) a backed up Linux distribution on another Windows 10 computer for another user?
       * if the default user (and its password) has to be changed, you probably have to follow the steps to [[https://docs.microsoft.com/en-us/windows/wsl/user-support#for-fall-creators-update-and-later|reset the Linux password]] and find a way to create a new account when the ''root'' password is activated
+===== Advanced usage =====
+==== Creating a backup ====
+=== Backup of a Full Linux installation ===
+You can use ''wsl'' to [[https://docs.microsoft.com/en-us/windows/wsl/faq#how-can-i-back-up-my-wsl-distributions--or-move-them-from-one-drive-to-another-|save a full Linux installation]] to a //tar// file, that can be:
+  * used later for //restoring// the full installation
+  * used for //relocating// the full installation from ''C:\'' to another disk
+Detailed steps:
+  * Determine the name of the current Linux installation used in WSL (and see if it is running, and using //WSL 1// or //WSL 2//)
+    * <code>> wsl --list --verbose
+  NAME      STATE           VERSION
+* Ubuntu    Running         2</code>
+  * [[other:win10wsl#rebooting_wsl|Stop WSL+Linux]]
+      * <code>> wsl --shutdown
+> wsl -l -v
+  NAME      STATE           VERSION
+* Ubuntu    Stopped         2</code>
+  * Export the specified Linux installation to a //tar// file:
+    * You should export to a directory or external disk where you have //enough// space\\ e.g. The tar file for a [[other:win10wsl#base_installation|newly installed and updated]] //Ubuntu 20.04.5 LTS// is ~1.G Gb
+    * You should use a detailed enough file name for the tar file\\ e.g. WSL_<Linux_Distribution>_<Distribution_Version>_<User>_<Date>.tar
+    * Example: ''wsl --export Ubuntu C:\Scratch\<your_login>\WSL\WSL_Ubuntu_20.04.5_LTS_stdu_22-08-29.tar''
+    * If you are not going to use the backup tar file right away, you can optionally compress it in order to save some space
+      * <code>Add compression example here</code>
+=== Other types of backup ===
+==== Restoring or relocating a Linux installation ====
+When we have a backup in a tar file, we can restore it to the default location (Check ?? FIXME), or specify where we want to restore it. This is a way of moving (relocating) an installation to another disk or partition than the default location ''C:\''
 ==== Uninstalling WSL ====
-Not too sure about this part...
+Before starting, you may want to make a backup of whatever you had in your Ubuntu home directory, and all the files and settings that are not in the ''/mnt'' directories
+=== Removing a specific Linux installation ===
+This process is called //unregistering// (based on [[https://docs.microsoft.com/en-us/windows/wsl/basic-commands#unregister-or-uninstall-a-linux-distribution|Unregister or uninstall a Linux distribution]])
+You just need to get the list of the currently installed Linux distributions, stop them and remove/unregister a specific distribution name
+<code>> wsl -l -v
+  NAME             STATE           VERSION
+* Ubuntu           Stopped         2
+  Ubuntu_custom    Running         2
+> wsl --terminate Ubuntu_custom
+> wsl -l -v
+  NAME             STATE           VERSION
+* Ubuntu           Stopped         2
+  Ubuntu_custom    Stopped         2
+> wsl --unregister Ubuntu_custom
+Désinscription...
+> wsl -l -v
+  NAME             STATE           VERSION
+* Ubuntu           Stopped         2</code>
+=== Removing WSL ===
+''wsl'' is a part of the Windows system and probably can't be removed.
+Anyway, when all existing Linux distributions are uninstalled, there should not be any big ''.vhdx'' files remaining (i.e. //no extra disk space used//), and there will not be any Linux processes running (i.e. //no extra CPU used//).
-  * Make a backup of whatever you had in your Ubuntu home directory, and all the files and settings that are not in the ''/mnt'' directories
-  * Find how to unregister Ubuntu on the [[https://docs.microsoft.com/en-us/windows/wsl/wsl-config|Manage and configure Windows Subsystem for Linux]] page
-  * and then disable WSL???
 ===== Miscellaneous =====

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