generateResolvConf = false doesn't work

[iranvir]

Version

Microsoft Windows [Version 10.0.22000.348]

WSL Version

• WSL 2
• WSL 1

Kernel Version

5.10.74.3-microsoft-standard-WSL2

Distro Version

Ubuntu 20.04

Other Software

No response

Repro Steps

I have noticed the following behaviour on my Windows 11 Build:

1. I create the following entry in /etc/wsl.conf:

[network]
generateResolvConf = false

2. I remove /mnt/wsl/resolv.conf and the symlink to this file, i.e., /etc/wsl.conf

3. I create a new /etc/resolv.conf file with the contents nameserver 1.1.1.1

4. I shutdown wsl using wsl --shutdown command

5. I restart wsl

6. The file /etc/resolv.conf has been removed and the /mnt/wsl/resolv.conf has been regenerated.

My other settings in wsl.conf (like default user) works, but everytime the subsystem is restarted, I have to manually create resolv.conf file.

Reproducible on Ubuntu and Alpine Linux

Expected Behavior

I expect WSL2 to not remove (or overwrite) my /etc/resolv.conf file after every WSL2 restart.
If possible, I would love to have a global option to completely disable this feature from using .wslconfig option.

Actual Behavior

After setting generateResolvConf = false in wsl.conf. WSL2 removes my custom /etc/resolv.conf after every restart.

Diagnostic Logs

No response

[ggrn]

I think wsl always update /mnt/wsl/resolv.conf and wsl.conf's generateResolvConf = false option just affects to recreation of symlink.

resolve issue steps >>

1. remove or backup resolv link file. sudo mv /etc/resolv.conf /etc/resolv.conf.bak
2. hard copy resolv file from link origin. sudo cp /mnt/wsl/resolv.conf /etc/resolv.conf
3. edit resolv (vi, nano, ...)
4. restart resolv using wsl --shutdown
5. check resolv wsl cat /etc/resolv.conf
6. ping ping google.com successfully

(Windows 11, Ubuntu distro)

[iranvir]

Didn't work. The custom /etc/resolv.conf file is still being removed (not even being replaced by the default symlink, just removed)
Also not sure why there's a need to oopy the /mnt/wsl/resolv.conf to /etc/resolv.conf and then edit it. But I did it anyways.

[sboden]

The commands to execute are as follows:

sudo rm /etc/resolv.conf
sudo bash -c 'echo "nameserver 8.8.8.8" > /etc/resolv.conf'
sudo bash -c 'echo "[network]" > /etc/wsl.conf'
sudo bash -c 'echo "generateResolvConf = false" >> /etc/wsl.conf'
sudo chattr +i /etc/resolv.conf

Then restart WSL2. I took the google DNS 8.8.8.8, but you can take another IP address.

[benhillis]

This behavior has been tweaked in 0.56.3

[iranvir]

Tweaked in what way?
Also how do we switch to that particular version?

[nmofonseca]

This behavior has been tweaked in 0.56.3

Hi @benhillis ,

Can you please provide more details?

I just upgraded windows 10 to windows 11 and now I am facing this exact issue.

/etc/wsl.conf is correctly setup, no symbolic link, everytime I reboot the laptop or shutdown my wsl , boom, resolv.conf gone.

This was working just fine in windows 10 btw.

I would like to see this open again, it doesn't seem to be fixed

[Killerbear]

same problem here
i got a new workstation at work with windows 11 and now i have the same issue.
WSL in Windows 11 seems to delete the resolv.conf file if generateResolvConf is set to false.

[nmofonseca]

Hello @Killerbear ,

There is another closed issue where I also commented and I got a solution there, you will need to update to one of the latest releases manually.

#8030 You can check onomatopellan reply to my comment, it explains where you can get it and how to install it. but here it goes the quote

"
@nmofonseca Are you in Windows 11? Since you are blocked I think it's worth trying to install the store version manually. Download the latest .msixbundle file from https://github.com/microsoft/WSL/releases and install it from elevated Powershell like this:

Add-AppxPackage .\Microsoft.WSL_0.58.3.0_x64_ARM64.msixbundle

"

Hope that helps