command on the control panel is disabled ... Reproducible: Always
Please provide more details. The bug report isn't really useful as is.
Accidentally marked bug as "Resolved - Later". Reopen and wait for info.
Simply the command control panel does not perform infirm operation when triggered (clicked) link. Reports that you can not do the operation.
Perhaps you could Copy/Paste the error message or provide a screenshot? It may have to do with PolicyKit not being able to execute the helper actions.
If you can provide the information requested in comment #4, please add it.
Created attachment 79015 [details] Grub2 disable this is the error that appears when you click the link configuration ...
Fedora uses /boot/grub2 instead of /boot/grub, I guess you are just using an old version which doesn't detect this. Please upgrade to v0.5.8 and report back. Distributions usually ship outdated packages, try picking the latest version from here: https://sourceforge.net/projects/kcm-grub2/
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days, the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please set the bug status as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!