Windows10 WSL2 Ubuntu / Debian # apt-get update failed # no network

ubuntu debian windows-subsystem-for-linux apt wsl-2
Jundl picture Jundl · Feb 17, 2020 · Viewed 14.2k times · Source

After upgrading from WSL to WSL2 

sudo apt-get update

not works any longer after

wsl --set-version Ubuntu-18.04 2

Output:

> 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'
Reading package lists... Done
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/bionic-security/InRelease  Temporary failure resolving 'security.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

After going back to WSL1 the problem disappears again. Same on Debian and analogous in CentOS .. so WSL2 must have a bug.

The Windows10 build Version is 19041 and was installed today.

Any work around for WSL2? Regards

Answer

Jundl picture Jundl · Feb 19, 2020

The generated file /etc/resolv.conf is:

nameserver 172.24.0.1

..had to change it to

nameserver 8.8.8.8

which resolves the problem

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