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Fixing "sudo: nix: command not found" when upgrading nix #6
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I installed nix 2.15 on Ubuntu 22.04 using DeterminateSystems installer. When trying to upgrade nix I got "sudo: nix: command not found". This workaround allowed me to successfully upgrade nix - it is using environment of normal user when running command as root user.
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antoineco
reviewed
Jul 24, 2024
pages/faq.mdx
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| ```shell | ||
| sudo nix upgrade-nix \ | ||
| sudo -E env "PATH=$PATH" nix upgrade-nix \ |
Contributor
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This doesn't look right. -E preserves the entire environment, so there is no need to add env ... to the command.
Besides, it would be safer to preserve just the PATH variable instead of the entire environment, as a good practice:
Suggested change
| sudo -E env "PATH=$PATH" nix upgrade-nix \ | |
| sudo --preserve-env=PATH nix upgrade-nix \ |
Removed '-E' flag as running with modified PATH is enough
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I installed nix 2.15 on Ubuntu 22.04 using DeterminateSystems installer. When trying to upgrade nix I got "sudo: nix: command not found". This workaround allowed me to successfully upgrade nix - it is using environment of normal user when running command as root user.