From: Daan De Meyer <daan@amutable.com>
Date: Thu, 19 Feb 2026 10:28:55 +0000 (+0100)
Subject: nspawn: Add --suppress-sync=yes by default
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c68d09985a07006400e3788cb739b6522e08b61b;p=thirdparty%2Fmkosi.git

nspawn: Add --suppress-sync=yes by default

We're doing development containers, so making sure changes actually
hit the disk isn't all that important. Let's add --suppress-sync=yes
by default to speed things up. This prevents
systemd-machine-id-commit.service from delaying the boot by 5s every
first boot of a container.
---

diff --git a/mkosi/__init__.py b/mkosi/__init__.py
index b18c6ae40..2349d6339 100644
--- a/mkosi/__init__.py
+++ b/mkosi/__init__.py
@@ -4260,7 +4260,7 @@ def run_shell(args: Args, config: Config) -> None:
     if config.output_format.use_outer_compression() and config.compress_output:
         die(f"Cannot {opname} compressed {config.output_format} images with systemd-nspawn")
 
-    cmdline: list[PathString] = ["systemd-nspawn", "--quiet", "--link-journal=no"]
+    cmdline: list[PathString] = ["systemd-nspawn", "--quiet", "--link-journal=no", "--suppress-sync=yes"]
 
     if config.runtime_network == Network.user:
         cmdline += ["--resolv-conf=auto"]