Too many levels of symbolic links when running ls -l /proc/sys/fs/binfmt_misc

[rubys]

I'm now seeing the same problem that was reported on the (now archived) ubuntu-wsl2-systemd-script:

DamionGans/ubuntu-wsl2-systemd-script#15

The solution is to add the following to /etc/rc.local in step 6

ls /proc/sys/fs/binfmt_misc > /dev/null 2>&1 || \
  mount -t binfmt_misc binfmt_misc /proc/sys/fs/binfmt_misc

---

More background:

Without this fix, I am now seeing the following when attempting to debug an application created using create react app:

[client] Error: spawn WSL Interopability is disabled. Please enable it before using WSL.
[client] C:/WINDOWS/System32/WindowsPowerShell/v1.0/powershell.exe ENOENT
[client]     at Process.ChildProcess._handle.onexit (internal/child_process.js:269:19)

The error message itself is produced by wslu-header when it is not able to verify that binfmt_misc/WSLInterop is enabled. Googling on that lead me to ubuntu-wsl2-systemd-script issue and ultimate fix.

Apparently, invoking the webpack devserver causes the system default browser to be launched, which in the case of WSL2 involves spawning out to powershell.