Make /etc/ and /usr/ as updated after installation #3602
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This implements the "conservative approach" discussed in systemd#3338. If we know that /etc/ and /var/ were populated during the installation, we can opt out of running early boot services, making the first boot quicker. C.f. https://bugzilla.redhat.com/show_bug.cgi?id=2348669.
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Why do this in a finalize script? That will only run in the mkosi repo itself. Shouldn't we do this in python in build_image() for all images? |
See the discussion in #3338. We don't know for certain if the image relies of those services being started or not. I think that in fact in most cases this is true, and starting them just wastes time, but in principle somebody could just drop in a I think that there are good reasons to change the semantics and say that all such updates must be done during the build. This is in particular necessary if the image is to be used read-only. At least because of that I think it'd make sense to do this. |
As discussed in the linked issue this would not always be sound. Think e.g. of a user which installs a library during |
This implements the "conservative approach" discussed in #3338. If we know that /etc/ and /var/ were populated during the installation, we can opt out of running early boot services, making the first boot quicker.
C.f. https://bugzilla.redhat.com/show_bug.cgi?id=2348669.