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Description of problem:

grub2-setpassword and 01_users reading user.cfg was added in Red Hat Enterprise Linux 7.2.  The relevant code from 01_users is only propagated to grub.cfg when grub2-mkconfig is run.  However, that does not happen during grub2 or kernel packages upgrades, mkconfig is only expected to run during system installation.

If user installed RHEL 7.0 or 7.1 and upgraded to 7.2, their grub.cfg will not attempt to use password set in user.cfg.  I think we need to make grub2-setpassword attempt to detect that user.cfg will be ignored and suggest regeneration of grub.cfg using mkconfig (or is there a better action to do?).  This may be as simple as:

grep -q 'user.cfg' /etc/grub2.cfg || echo 'use grub2-mkconfig to password protection to work'

Version-Release number of selected component (if applicable):

grub2-2.02-0.29.el7.x86_64

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHBA-2016-2336.html

The needinfo request[s] on this closed bug have been removed as they have been unresolved for 1000 days