[PATCH v3 1/1] docs: luks2: Mention key derivation function support

[Petr Vorel]

To give users hint why Argon2 (the default in cryptsetup for LUKS2)
does not work.

Reviewed-by: Patrick Steinhardt <ps@pks.im>
Acked-by: Paul Menzel <pmenzel@molgen.mpg.de>
Signed-off-by: Petr Vorel <pvorel@suse.cz>
---
Changes v2->v3
* Use proper term (pointed out by Milan Broz)
s/derival/derivation/

Kind regards,
Petr

 docs/grub.texi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docs/grub.texi b/docs/grub.texi
index eeac9b2ce..bb3608891 100644
--- a/docs/grub.texi
+++ b/docs/grub.texi
@@ -4291,7 +4291,8 @@ devices; option @option{-b} configures all geli 
containers that have boot flag s
 
 GRUB suports devices encrypted using LUKS, LUKS2 and geli. Note that necessary
 modules (@var{luks}, @var{luks2} and @var{geli}) have to be loaded manually
-before this command can be used.
+before this command can be used. For LUKS2 only the PBKDF2 key derivation
+function is supported, as Argon2 is not yet supported.
 @end deffn
 
 
-- 
2.30.0