I just ran sh <(curl -L https://nixos.org/nix/install) --daemon to install nix via its installation instructions. I proceeded through the installation menu where it backs up your bashrc and other config files. y on sudo permissions, it installs and doesn't complain.

systemctl status systemctl status nix-daemon.service daemon running with no issues. However when I execute nix-shell I get

nix-shell: /nix/store/jsp3h3wpzc842j0rz61m5ly71ak6qgdn-glibc-2.32-54/lib/libc.so.6: version GLIBC_2.33' not found (required by /usr/local/lib/libsodium.so.23)

When I execute nix-env --version same error.

I've uninstalled / reinstalled nix several times now and getting the same error. Checked Fedora 35 glibc version ldd --version and get back 2.34

Any advice on getting nix-shell to execute properly in Fedora 35?

  • Welcome to Cardano SE! As a new user be sure to take the Tour.
    – gRebel
    Commented Jan 14, 2022 at 4:39
  • Where id you run nix-shell, in which folder?
    – angerman
    Commented Jan 14, 2022 at 4:43

3 Answers 3


Fixed. I had the Cardano node previously installed which involves compiling and installing libsodium. What I did was go into the libsodium folder and sudo make libsodium uninstall Then re-ran nix installation and now I get a nix-shell.

  • Welcome to Cardano SE! As a new user be sure to take the Tour.
    – gRebel
    Commented Jan 16, 2022 at 4:25
  • For me the make command failed and I had to go to /usr/local/lib, created a backup directory and moved all libsodium.* files to it. This removed that existing lib and nix installed fine.
    – Skelli
    Commented Feb 8, 2022 at 13:56

I went ahead and got ahold of a fedora 35 install. I was not able to install the --daemon version, due to fedoras SELinux enforcement. I did however manage to install nix in single user mode.

and nix-shell works.

$ nix-shell -p hello
these 42 paths will be fetched (61.29 MiB download, 281.92 MiB unpacked):
[nix-shell:~]$ hello
Hello, world!

  • Sadly I'm getting the same error with single user mode installation. sh <(curl -L https://nixos.org/nix/install) --no-daemon copying Nix to /nix/store........................................... /nix/store/azld8vfyqb4fx6bxdz28n3nw23nghf88-nix-2.5.1/bin/nix-store: /nix/store/jsp3h3wpzc842j0rz61m5ly71ak6qgdn-glibc-2.32-54/lib/libc.so.6: version `GLIBC_2.33' not found (required by /usr/local/lib/libsodium.so.23) /tmp/nix-binary-tarball-unpack.PWdwdaEWRp/unpack/nix-2.5.1-x86_64-linux/install: unable to register valid paths
    – drock00
    Commented Jan 14, 2022 at 23:49

I had the same issue. I noticed it happens when you had/have previously setup a Cardano node since that required setting up libsodium. The issue is with the LD_LIBRARY_PATH envronment variable added in the process.

To solve it I commented out that variable export in the ~/.bashrc file. You may need to restart the terminal for the change to take effect.

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