Missing /dev/fd

[theoparis]

The same issue can be seen by running sh <(curl -L https://nixos.org/nix/install) on both https://webvm.io/ and https://webvm.io/alpine.html

Mounting it manually via mount -t devtmpfs none /dev as root fails with: mount: /dev: mount(2) system call failed: Function not implemented

[alexp-sssup]

Thanks for reporting this, currently the dev filesystem is read-only and the /dev/fd -> /proc/self/fd symlink is not properly created. We'll fix this when we have a chance.