Shell Trying to add SystemD to Linux installed on the Linuxulator...

ziomario

ziomario

Hello.

There was a time when the developers were working on the WSL vers. 2 (Windows Subsystem for Linux),and they hadn't developed SystemD yet. And I remember well that there was an external developer that had created a dirty but working hack to add it to WSL2. Yesterday I thought,why not try to adapt it and make it work on Linux (on the CentOS,maybe or on Ubuntu) that we have installed on our Linux emulation layer on FreeBSD ? I'm a hobbyist,I'm not sure if it is really needed. I want to leave the judgement to you. In the meantime I'll paste the script. I'm not able to adapt the script for the purpose only by myself,but I can help....

Code: 
if [ "$1" != "--force" ]; then
    if [ -f /usr/sbin/start-systemd-namespace ]; then
        echo "It appears you have already installed the systemd hack."
        echo "To forcibly reinstall, run this script with the \`--force\` parameter."
        exit
    fi
    if [ -z "$WSL_DISTRO_NAME" ]; then
        echo "It appears that you are not running on WSL."
        echo "To forcibly install anyway, run this script with the \`--force\` parameter."
        exit
    fi
fi

self_dir="$(dirname $0)"

function interop_prefix {
    win_location="/mnt/"
    if [ -f /etc/wsl.conf ]; then
        tmp="$(awk -F '=' '/root/ {print $2}' /etc/wsl.conf | awk '{$1=$1;print}')"
        [ "$tmp" == "" ] || win_location="$tmp"
        unset tmp
    fi
    echo "$win_location"

    unset win_location
}

function sysdrive_prefix {
    win_location="$(interop_prefix)"
    hard_reset=0
    for pt in $(ls "$win_location"); do
        if [ $(echo "$pt" | wc -l) -eq 1 ]; then
            if [ -d "$win_location$pt/Windows/System32" ]; then
                hard_reset=1
                win_location="$pt"
                break
            fi
        fi
    done

    if [ $hard_reset -eq 0 ]; then
        win_location="c"
    fi

    echo "$win_location"

    unset win_location
    unset hard_reset
}

sudo hwclock -s
sudo apt-get update && sudo apt-get install -yqq daemonize dbus-user-session fontconfig

sudo cp "$self_dir/start-systemd-namespace" /usr/sbin/start-systemd-namespace
sudo cp "$self_dir/enter-systemd-namespace" /usr/sbin/enter-systemd-namespace
sudo chmod +x /usr/sbin/enter-systemd-namespace

sudo tee /etc/sudoers.d/systemd-namespace >/dev/null <<EOF
Defaults        env_keep += WSLPATH
Defaults        env_keep += WSLENV
Defaults        env_keep += WSL_INTEROP
Defaults        env_keep += WSL_DISTRO_NAME
Defaults        env_keep += PRE_NAMESPACE_PATH
Defaults        env_keep += PRE_NAMESPACE_PWD
%sudo ALL=(ALL) NOPASSWD: /usr/sbin/enter-systemd-namespace
EOF

if ! grep 'start-systemd-namespace' /etc/bash.bashrc >/dev/null; then
  sudo sed -i 2a"# Start or enter a PID namespace in WSL2\nsource /usr/sbin/start-systemd-namespace\n" /etc/bash.bashrc
fi

sudo rm -f /etc/systemd/user/sockets.target.wants/dirmngr.socket
sudo rm -f /etc/systemd/user/sockets.target.wants/gpg-agent*.socket
sudo rm -f /lib/systemd/system/sysinit.target.wants/proc-sys-fs-binfmt_misc.automount
sudo rm -f /lib/systemd/system/sysinit.target.wants/proc-sys-fs-binfmt_misc.mount
sudo rm -f /lib/systemd/system/sysinit.target.wants/systemd-binfmt.service

if [ -f /proc/sys/fs/binfmt_misc/WSLInterop ] && [ "$(head -n1  /proc/sys/fs/binfmt_misc/WSLInterop)" == "enabled" ]; then
  "$(interop_prefix)$(sysdrive_prefix)"/Windows/System32/cmd.exe /C setx WSLENV BASH_ENV/u
  "$(interop_prefix)$(sysdrive_prefix)"/Windows/System32/cmd.exe /C setx BASH_ENV /etc/bash.bashrc
else
  echo
  echo "You need to manually run the following two commands in Windows' cmd.exe:"
  echo
  echo "  setx WSLENV BASH_ENV/u"
  echo "  setx BASH_ENV /etc/bash.bashrc"
  echo
fi

full script here :

github.com

ubuntu-wsl2-systemd-script/ubuntu-wsl2-systemd-script.sh at master · DamionGans/ubuntu-wsl2-systemd-script

[Does not work anymore!] Script to enable systemd support on current Ubuntu WSL2 images - DamionGans/ubuntu-wsl2-systemd-script
github.com github.com
 
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