(Some background info about this warning message and GRUB_HIDDEN_TIMEOUT's deprecation can be found in the following threads: http://lists.gnu.org/archive/html/grub-devel/2013-11/msg00388.html http://lists.gnu.org/archive/html/grub-devel/2013-12/msg00122.html )
(Some background info about this warning message and GRUB_HIDDEN_ TIMEOUT' s deprecation can be found in the following threads: lists.gnu. org/archive/ html/grub- devel/2013- 11/msg00388. html lists.gnu. org/archive/ html/grub- devel/2013- 12/msg00122. html
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