fix WSL 2 install, update docs, separate installs

[webi-installers/.git] / wsl2 / install.ps1

diff --git a/wsl2/install.ps1 b/wsl2/install.ps1
index c5f40eab1f172fa724905ead4479883fbacc916d..c1cd83a8c6b559529fe912ecd2ee6549430945f9 100644 (file)
--- a/wsl2/install.ps1
+++ b/wsl2/install.ps1
@@ -10,9 +10,60 @@ $MYPWD = (Get-Item .).FullName
 & curl.exe -fA "MS" -o "$Env:TEMP\install-wsl2.ps1" "$Env:WEBI_HOST/packages/wsl2/install-wsl2.ps1"
 powershell -Command "Start-Process cmd -Wait -Verb RunAs -ArgumentList '/c cd /d %CD% && powershell -ExecutionPolicy Bypass $Env:TEMP\install-wsl2.ps1'"
 
+# From https://devblogs.microsoft.com/scripting/use-a-powershell-function-to-see-if-a-command-exists/
+Function Test-CommandExists
+{
+    Param ($command)
+    $oldPreference = $ErrorActionPreference
+    $ErrorActionPreference = 'stop'
+    try {if(Get-Command $command){RETURN $true}}
+    Catch {RETURN $false}
+    Finally {$ErrorActionPreference=$oldPreference}
+}
+
+IF(!(Test-CommandExists wsl))
+{
+    echo ""
+    echo ""
+    echo ""
+    echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+    echo "!!!                          !!!"
+    echo "!!!      READ CAREFULLY      !!!"
+    echo "!!!                          !!!"
+    echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+    echo ""
+    echo "WSL 2 was NOT installed yet. You MUST follow these instructions:"
+    echo ""
+    echo "    1. REBOOT you computer to finish the WSL 1 install"
+    echo "       (either click Start Menu => Restart, or run 'shutdown /r /t 5')"
+    echo ""
+    echo "    2. RE-RUN this WSL 2 installer"
+    echo "       (WSL 2 cannot finish installing until the WSL 1 install is complete)"
+    echo ""
+    echo "    3. Download and Install Linux"
+    echo "       (see https://webinstall.dev/wsl2)"
+    echo ""
+
+    Exit
+}
+
+echo ""
+echo ""
+echo ""
+echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+echo "!!!                          !!!"
+echo "!!!      READ CAREFULLY      !!!"
+echo "!!!                          !!!"
+echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+echo ""
+echo "WSL 2 is now installed, HOWEVER, you MUST:"
+echo ""
+echo "However, you still MUST INSTALL LINUX:"
+echo ""
+echo "    1. Download and Install Ubuntu Linux"
+echo "       (see https://webinstall.dev/wsl2)"
 echo ""
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!"
-echo "!!!  Reboot REQUIRED  !!!"
-echo "!!!!!!!!!!!!!!!!!!!!!!!!!"
+echo "    2. Set WSL to use WSL 2 with Hyper-V. For example:"
+echo "       wsl.exe --set-version Ubuntu-20.04 2"
+echo "       wsl.exe --set-default-version 2"
 echo ""
-echo "WSL 2 will be available to use after rebooting."