Does running .exe's still work with the custom init system?

[lithdew]

Apologies in advance for posting the question in the title as an issue (didn't notice anywhere I could post questions regarding this repo), though I'm looking to migrate from NixOS to Windows w/ WSL2 + NixOS and wanted to know if this is doable.

The use case is for writing Windows code in WSL2, and debugging them directly on Windows. As of now w/ NixOS, I use Wine to debug Windows code I write.

[sarahhodne]

It doesn't seem to work for me. The path isn't forwarded like usual, but even running with the full path I don't get any output from running .exes:

➜ /mnt/c/Windows/System32/ipconfig.exe

➜

Also, if anyone else is having issues with /mnt/c not automounting, try adding tzdata to your environment.systemPackages and this to your /etc/wsl.conf (inside the NixOS FS):

[automount]
enabled = true
options = "metadata,uid=1000,gid=100,noauto,x-systemd.automount"

[sarahhodne]

I got it to work, you need to forward some environment variables through syschdemd.sh, something like this seems to work for me:

# ...this is replacing the very last line of syschdemd.sh, the `exec $sw/nsenter...`
exportCmd="export WSLENV=\"$WSLENV\"; export WT_SESSION=\"$WT_SESSION\"; export WT_PROFILE_ID=\"$WT_PROFILE_ID\"; export WSL_INTEROP=\"$WSL_INTEROP\""
exec $sw/nsenter -t $(< /run/systemd.pid) -p -m -- $sw/machinectl -q --uid=@defaultUser@ shell .host /bin/sh -c "cd \"$PWD\"; $exportCmd; exec $cmd"

There's probably some nicer way of doing it, though.

[lithdew]

I got it to work, you need to forward some environment variables through syschdemd.sh, something like this seems to work for me:

# ...this is replacing the very last line of syschdemd.sh, the `exec $sw/nsenter...`
exportCmd="export WSLENV=\"$WSLENV\"; export WT_SESSION=\"$WT_SESSION\"; export WT_PROFILE_ID=\"$WT_PROFILE_ID\"; export WSL_INTEROP=\"$WSL_INTEROP\""
exec $sw/nsenter -t $(< /run/systemd.pid) -p -m -- $sw/machinectl -q --uid=@defaultUser@ shell .host /bin/sh -c "cd \"$PWD\"; $exportCmd; exec $cmd"

There's probably some nicer way of doing it, though.

Awesome that you got it working though! I'll have a try then after migrating to Windows. Thanks!

[adrian-gierakowski]

I got it to work, you need to forward some environment variables through syschdemd.sh, something like this seems to work for me:

# ...this is replacing the very last line of syschdemd.sh, the `exec $sw/nsenter...`
exportCmd="export WSLENV=\"$WSLENV\"; export WT_SESSION=\"$WT_SESSION\"; export WT_PROFILE_ID=\"$WT_PROFILE_ID\"; export WSL_INTEROP=\"$WSL_INTEROP\""
exec $sw/nsenter -t $(< /run/systemd.pid) -p -m -- $sw/machinectl -q --uid=@defaultUser@ shell .host /bin/sh -c "cd \"$PWD\"; $exportCmd; exec $cmd"

after replacing the last line of syschdemd.sh with the above and running sudo nixos-rebuild switch I cannot boot into the system. @sarahhodne @Trundle: any idea how I could recover from this? Thanks!

[sarahhodne]

I don't really use WSL anymore, so I'm not sure, but you may be able to use wsl --export to export your filesystem into a .tar, extract that and edit the file, and then re-pack and wsl --import it again… but there might be an easier way too, but I can't really try things since I don't have a WSL (or even Windows) environment around anymore.