unfortunately, the patches for cryptomount
which were submitted to grub-devel in 2015 (see
were again discussed on the grub-help mailing list last year, with the
result of revisiting after the next release, have still not been merged.
The author of these patches has provided a summary page about the
patches here: http://grub.johnlane.ie/
I would personally advocate for merging these patches, as I see immense
use in them. To provide plausible deniability in a crypto setup,
detached luks headers are very much required.
Could anyone give their approval for merging?
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