In NixOS, /etc is NOT read-only, and most things in /etc are symlinks to /etc/static, which is a symlink into the nix store - so the upstream systemd "/etc is read-only" detection doesn't work. Fixes #224080.
40 lines
1.8 KiB
Diff
40 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Yuriy Taraday <yorik.sar@gmail.com>
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Date: Fri, 17 Jun 2022 12:45:10 +0000
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Subject: [PATCH] inherit systemd environment when calling generators.
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Systemd generators need access to the environment configured in
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stage-2-init.sh since it schedules fsck and mkfs executions based on
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being able to find an appropriate binary for the target filesystem.
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With this commit I am altering the systemd behaviour since upstream
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tries to gather environments with that they call
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"environment-generators" and then seems to pass that on to all the other
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executables that are being called from managers.
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---
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src/core/manager.c | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/src/core/manager.c b/src/core/manager.c
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index 817acb87b8..3f31359f8a 100644
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--- a/src/core/manager.c
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+++ b/src/core/manager.c
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@@ -3714,9 +3714,17 @@ static int build_generator_environment(Manager *m, char ***ret) {
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* adjust generated units to that. Let's pass down some bits of information that are easy for us to
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* determine (but a bit harder for generator scripts to determine), as environment variables. */
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+ // On NixOS we must propagate PATH to generators so they are
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+ // able to find binaries such as `fsck.${fstype}` and
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+ // `mkfs.${fstype}`. That is why we ignore transient_environment that
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+ // overrides the PATH variable. This propagates systemd's
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+ // environment (e.g. PATH) that was setup
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+ // before calling systemd from stage-2-init.sh.
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+#if 0
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nl = strv_copy(m->transient_environment);
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if (!nl)
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return -ENOMEM;
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+#endif
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r = strv_env_assign(&nl, "SYSTEMD_SCOPE", MANAGER_IS_SYSTEM(m) ? "system" : "user");
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if (r < 0)
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