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nixos: move environment.{variables => sessionVariables}.MODULE_DIR

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This solves the problem that modprobe does not know about $MODULE_DIR
when run via sudo, and instead wrongly tries to read /lib/modules/:

  $ sudo strace -efile modprobe foo |& grep modules
  open("/lib/modules/3.14.37/modules.softdep", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  open("/lib/modules/3.14.37/modules.dep.bin", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  open("/lib/modules/3.14.37/modules.dep.bin", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)
  open("/lib/modules/3.14.37/modules.alias.bin", O_RDONLY|O_CLOEXEC) = -1 ENOENT (No such file or directory)

Without this patch, one would have to use sudo -E (preserves environment
vars). But that option is reserved for sudo users with extra rights
(SETENV), so it's not a solution.

environment.sessionVariables are set by PAM, so they are included in the
environment used by sudo.
This commit is contained in:
Bjørn Forsman 2015-04-10 22:41:55 +02:00
parent c72bbc5b8e
commit 74d5adcb4d
1 changed files with 1 additions and 1 deletions
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2
nixos/modules/system/boot/modprobe.nix
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@ -101,7 +101,7 @@ with lib;
echo ${config.system.sbin.modprobe}/sbin/modprobe > /proc/sys/kernel/modprobe
'';
environment.variables.MODULE_DIR = "/run/current-system/kernel-modules/lib/modules";
environment.sessionVariables.MODULE_DIR = "/run/current-system/kernel-modules/lib/modules";
};