I have recently set up Windows Subsystem for Linux (WSL2) on my Windows 10 laptop and installed Ubuntu 20.04 LTS. When i tried ‘apt update’ on Ubuntu distro, it failed with following error messages.
> sudo apt-get update Err:1 http://security.ubuntu.com/ubuntu bionic-security InRelease Temporary failure resolving 'security.ubuntu.com' Err:2 http://archive.ubuntu.com/ubuntu bionic InRelease Temporary failure resolving 'archive.ubuntu.com' Err:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease Temporary failure resolving 'archive.ubuntu.com' Err:4 http://archive.ubuntu.com/ubuntu bionic-backports InRelease Temporary failure resolving 'archive.ubuntu.com'
I did the following to get it working.
On the Ubuntu distro, create a file at this location /etc/wsl.conf.
The file should have the following configuration.
[network] generateResolvConf = false
If we don’t set this file, WSL will automatically load a default /etc/resolv.conf with default namesever configuration.
Shut down and restart the distro.
Delete the default /etc/resolv.conf file.
sudo rm /etc/resolv.conf
Create a new /etc/resolv.conf with the following entry.
Now, restart the WSL2 and open the distro again. The apt update on WSL2 should work like a charm.