PostgreSQL - WSL : won't init - postgresql

Question

i'm currently developping a Django server where i need a database, Sqlite3 don't seem to handle well my need so i'm trying to use PostgreSQL instead. I'm devellopping on Windows but the server will run on a Linux system once development is done, so i'm trying to use WSL to fit the expected result.
wsl -l -v
NAME STATE VERSION
Ubuntu-22.04 Running 1
I also updated to WSL2, same issue.
My issue is that i can't start the database :
# sudo service postgresql start
No PostgreSQL clusters exist; see "man pg_createcluster"
What i've done so far :
sudo apt update
sudo apt upgrade
sudo apt install postgresql postgresql-contrib
// it s installed
> psql --version
psql (PostgreSQL) 14.2 (Ubuntu 14.2-1ubuntu1)
// no service currently running
> ps aux| grep postgres
root 583 0.0 0.0 15044 1280 tty3 S 08:42 0:00 grep --color=auto postgres
// no cluster ?!?
> sudo service postgresql start
No PostgreSQL clusters exist; see "man pg_createcluster"
// indeed no cluster are created by default
> pg_lsclusters
Ver Cluster Port Status Owner Data directory Log file
// but i can t create one
> pg_createcluster 14.2 main
Error: no initdb program for version 14.2 found
> sudo pg_createcluster 14 main
Creating new PostgreSQL cluster 14/main ...
/usr/lib/postgresql/14/bin/initdb -D /var/lib/postgresql/14/main --auth-local peer --auth-host scram-sha-256 --no-instructions
Can't exec "/usr/lib/postgresql/14/bin/initdb": Permission denied at /usr/bin/pg_createcluster line 86.
Error: Could not open /etc/postgresql/14/main/start.conf for writing: Permission denied
Can't exec "/bin/sh": Permission denied at /usr/bin/pg_createcluster line 617.
Error: initdb failed
I also tried : this stackoverflow link
> sudo service --status-all
// ...
[ - ] postgresql
// ...
> sudo ps aux | grep postgres
root 769 0.0 0.0 15044 1284 tty3 S 08:48 0:00 grep --color=auto postgres
I didn't really understand this link : Change some config file that i can't find
And this one that only proposed to reformat my disk.. Link

Answer 1

Following Mark's Link i was able to find a solution.
It seems that WSL2 is required
I tried 2 wsl distro :
Ubuntu-22.04 -> Didn't work even with the guide, maybe it would work on a fresh install.
Ubuntu 20.04.4 LTS -> fresh install worked
# Create the file repository configuration:
sudo sh -c 'echo "deb http://apt.postgresql.org/pub/repos/apt $(lsb_release -cs)-pgdg main" > /etc/apt/sources.list.d/pgdg.list'
# Import the repository signing key:
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
# Update the package lists:
sudo apt-get update
# Install the latest version of PostgreSQL.
# If you want a specific version, use 'postgresql-12' or similar instead of 'postgresql':
sudo apt-get -y install postgresql postgresql-contrib