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fix: shutdown nscd when installing nix. #526

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Merged
mergify merged 1 commit into from
Sep 19, 2026
Merged

fix: shutdown nscd when installing nix. #526

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7 changes: 7 additions & 0 deletions lib/container-test-driver/test_driver/machine.py
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Original file line number Diff line number Diff line change
Expand Up @@ -329,13 +329,20 @@ def install_nix_if_needed(self) -> None:
return # Already installed

with self.nested("Installing Nix via nix-installer"):
nscd_active = self.systemctl("is-active nscd").returncode == 0
if nscd_active:
# Temporarily shutdown nscd due to https://github.com/DeterminateSystems/nix-installer/issues/622
# (which also appears with https://github.com/NixOS/nix-installer)
self.systemctl("stop nscd")
# Run nix-installer in multi-user mode with daemon
result = self.execute(
"/usr/local/bin/nix-installer install linux "
"--no-confirm "
"--extra-conf 'sandbox = false'",
timeout=300,
)
if nscd_active:
self.systemctl("start nscd")
if result.returncode != 0:
msg = f"Failed to install Nix: {result.stdout}"
raise Error(msg)
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