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3 commits

Author SHA1 Message Date
Rovanion Luckey
a413594baf installer: Handle edge case where the nix-daemon is already running on the system
On a systemd-based Linux distribution: If the user has previously had multi-user Nix installed on the system, removed it and then reinstalled multi-user Nix again the old nix-daemon.service will still be running when `scripts/install-systemd-multi-user.sh` tries to start it which results in nothing being done and the old daemon continuing its run.

When a normal user then tries to use Nix through the daemon the nix binary will fail to connect to the nix-daemon as it does not belong to the currently installed Nix system. See below for steps to reproduce the issue that motivated this change.

$ sh <(curl https://nixos.org/nix/install) --daemon

$ sudo rm -rf /etc/nix /nix /root/.nix-profile /root/.nix-defexpr /root/.nix-channels /home/nix-installer/.nix-profile /home/nix-installer/.nix-defexpr /home/nix-installer/.nix-channels ~/.nix-channels ~/.nix-defexpr/ ~/.nix-profile /etc/profile.d/nix.sh.backup-before-nix /etc/profile.d/nix.sh; sed -i '/added by Nix installer$/d' ~/.bash_profile

$ unset NIX_REMOTE

$ sh <(curl https://nixos.org/nix/install) --daemon

└$ export NIX_REMOTE=daemon

└$ nix-env -iA nixpkgs.hello
installing 'hello-2.10'
error: cannot connect to daemon at '/nix/var/nix/daemon-socket/socket': No such file or directory
(use '--show-trace' to show detailed location information)

└$ sudo systemctl restart nix-daemon.service

└$ nix-env -iA nixpkgs.hello
installing 'hello-2.10'
these paths will be fetched (6.09 MiB download, 27.04 MiB unpacked):
  /nix/store/2g75chlbpxlrqn15zlby2dfh8hr9qwbk-hello-2.10
  /nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27
copying path '/nix/store/aag9d1y4wcddzzrpfmfp9lcmc7skd7jk-glibc-2.27' from 'https://cache.nixos.org'...
copying path '/nix/store/2g75chlbpxlrqn15zlby2dfh8hr9qwbk-hello-2.10' from 'https://cache.nixos.org'...
building '/nix/store/w9adagg6vlikr799nkkqc9la5hbbpgmi-user-environment.drv'...
created 2 symlinks in user environment
2020-01-23 14:48:53 +01:00
Venkateswara Rao Mandela
6dab42a551
installer: handle network proxy in systemd install
If a network proxy configuration is detected, setup an override
systemd unit file for nix-daemon service with the non-empty
proxy variables.

Proxy detection is performed by looking for http/https/ftp proxy and no
proxy variables in user environment
2019-08-24 09:08:41 -04:00
Graham Christensen
2921165a9d
Expand the multi-user installer to support Linuxes with systemd
- darwin installer: delete hardware report, not necessary
 - moves os-specific code from the darwin installer to to `poly_*`
   functions
 - adds profile.d support to the profile targets, which automatically
   handles many distros which don't have a /etc/bashrc but do have an
   /etc/profile.d
 - /bin/bash -> /usr/bin/env bash
 - document why each excluded shellcheck check is excluded
 - rename the multi-user to Daemon-based
2018-03-29 15:38:01 -04:00