Ubuntu Dist-Upgrade unter WSL2

ERROR during do-release-upgrade on WSL2

Cannot upgrade without unified cgroupv2 hierarchy Beginning with Ubuntu 26.04 LTS, it is required that the system is booted with a unified cgroupv2 hierarchy, but this system is not.

SOLUTION

create or edit .wslconfig in %USERPROFILE%. Add the following content

[wsl2]
kernelCommandLine = cgroup_no_v1=all

reboot wsl from cmd/wt/PowerShell

wsl --shutdown

NACH Upgrade

Windows Terminal aktualisiert den Versionsnamen nicht in der Anzeige, einfach in den Einstellungen ändern.

Ändern des Namens für wsl –list

Get-ChildItem "HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss" |
  ForEach-Object {
    $name = (Get-ItemProperty $_.PSPath).DistributionName
    [PSCustomObject]@{ GUID = $_.PSChildName; Name = $name }
  }

shutdown wsl

wsl --shutdown

change name

$guid = "{12345678-abcd-1234-abcd-123456789012}"
Set-ItemProperty -Path "HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss\$guid" `
  -Name "DistributionName" -Value "Ubuntu-26.04"

that is not enough, edit the settings.json of your WT (either Preview or Public)

$env:LOCALAPPDATA\Packages\Microsoft.WindowsTerminal_8wekyb3d8bbwe\LocalState\
$env:LOCALAPPDATA\Packages\Microsoft.WindowsTerminalPreview_8wekyb3d8bbwe\LocalState\

ensure the GUID is the same as in the registry