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be a bit more accurate about IMAGEFORMAT

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Michael Hudson-Doyle 2025-12-02 18:42:47 +13:00
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README.parameters
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@ -147,11 +147,21 @@ IMAGEFORMAT
-----------
This is one of the more incoherently handled parameters. In rough
outline it is the filesystem of the image we produce, but relatively
few builds produce raw images so _mostly_ it is set to 'plain' (which
causes live-build to just leave the rootfs as a directory tree) or
'none' (which causes live-build to do roughly the same thing but in a
different way?).
outline it is the filesystem of the image we produce.
Installer builds do not produce raw images, so this ends up being set
to 'plain' (which causes live-build to just leave the rootfs as a
directory tree) or 'none' (which causes live-build to do roughly the
same thing but in a different way?).
Image builds that use ubuntu-image set it to "ubuntu-image". These
builds do not call 'lb build' or 'lb binary'.
Other preinstalled images (mostly cpc images) set it to ext4 (but then
use live-build/ubuntu-cpc/hooks.d/remove-implicit-artifacts to remove
the output file that this causes live-build to produce...). Some
projects rely on this being set via metadata when building the project
it seems.
It can be set when starting an image build, but most builds do not and
the behavior when it is not set explicitly is pretty confusing.