I'm confused here: >...and then it fails on activation because DM table load detects old (or missing) dm-crypt feature. >(There was no way to get dm target version before table load if module is not loaded.) >And I tried to avoid modprobe calls from libcryptsetup.
I'm not understanding how this could work. Let's say there's a module providing target 'splice' which is currently unloaded. Then `dmsetup target-version splice` is unaware of the splice target, and thus reports nothing. So in order to get the proper version number, we do have to do a modprobe first. But, if the module providing splice *is* already loaded, `dmsetup targets` will report splice's version number already, so `dmsetup target-version splice` is a convenience instead of parsing `dmsetup targets` output?
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