https://savannah.gnu.org/bugs/?55093
GNU GRUB - Bugs: bug #55093, Add LUKS2 support [Savannah]
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https://manpages.ubuntu.com/manpages/resolute/man8/cryptsetup-convert.8.html
Ubuntu Manpage: cryptsetup-convert - converts the device between LUKS1 and LUKS2 format
converts the device between LUKS1 and LUKS2 format
the device