nixpkgs/nixos/modules/installer/tools
Domen Kožar a6670c1a0b Fixes #18124: atomically replace /var/setuid-wrappers/ (#18186)
Before this commit updating /var/setuid-wrappers/ folder introduced
a small window where NixOS activation scripts could be terminated
and resulted into empty /var/setuid-wrappers/ folder.

That's very unfortunate because one might lose sudo binary.

Instead we use two atomic operations mv and ln (as described in
https://axialcorps.com/2013/07/03/atomically-replacing-files-and-directories/)
to achieve atomicity.

Since /var/setuid-wrappers is not a directory anymore, tmpfs mountpoints
were removed in installation scripts and in boot process.

Tested:

- upgrade /var/setuid-wrappers/ from folder to a symlink
- make sure /run/setuid-wrappers-dirs/ legacy symlink is really deleted
2016-09-01 20:57:51 +02:00
..
nixos-build-vms
auto-upgrade.nix treewide: Use correct output of config.nix.package in non-string contexts 2016-04-25 16:44:38 +02:00
get-version-suffix Revert adding .git-revision unconditionally 2016-08-09 14:15:06 +02:00
nixos-generate-config.pl Rename boot.loader.gummiboot.enable -> boot.loader.systemd-boot.enable 2016-06-01 12:55:52 +02:00
nixos-install.sh Fixes #18124: atomically replace /var/setuid-wrappers/ (#18186) 2016-09-01 20:57:51 +02:00
nixos-option.sh Revert "Add the tool "nixos-typecheck" that can check an option declaration to:" 2016-03-01 20:52:06 +01:00
nixos-rebuild.sh Deprecate --install-grub in favor of --install-bootloader for nixos-rebuild. 2016-08-16 07:51:58 -04:00
nixos-version.sh nixos-version: fix syntax error and add -h (#16906) 2016-07-13 09:11:32 +02:00
tools.nix nixos/lib/make-disk-image: refactor to use nixos-install 2016-08-16 15:31:16 +01:00