Do not use KDE System Settings to configure GRUB 2

[Fitzcarraldo]

The GUI for configuring GRUB 2 in KDE System Settings is a KDE control module named kcm-grub2. It works with the GRUB 2 schema used in other distributions, but not with the GRUB 2 schema used in SL. Below I list the differences between GRUB 2 in Gentoo and in SL, which is why kcm-grub2 does not work in SL.

Gentoo GRUB 2:
Main directory used: /boot/grub2/
Directory in which GRUB 2 core.img file is stored: /boot/grub2/i386-pc/core.img
Command to install GRUB 2 in the MBR of HDD sda: grub2-install /dev/sda
Command to create grub.cfg file: grub2-mkconfig -o /boot/grub2/grub.cfg

Sabayon GRUB 2 before GRUB 2 Version 2.00:
Main directory used: /boot/grub/
Directory in which GRUB 2 core.img file is stored: /boot/grub/core.img
Command to install GRUB 2 in the MBR of HDD sda: grub2-install /dev/sda
Command to create grub.cfg file: grub-mkconfig -o /boot/grub/grub.cfg

Sabayon GRUB 2 now:
Main directory used: /boot/grub/
Directory in which GRUB 2 core.img file is stored: /boot/grub/i386-pc/core.img
Command to install GRUB 2 in the MBR of HDD sda: grub2-install /dev/sda
Command to create grub.cfg file: either 'grub-mkconfig -o /boot/grub/grub.cfg' or 'grub2-mkconfig -o /boot/grub/grub.cfg' (grub-mkconfig is a symlink to grub2-mkconfig)

[albfneto]

I know this. I know that kcm-grub package not works in Sabayon, but prior your post, i had in mInd that as a bug in the package.
Thanks for the info.

Another package that sometimes gives problems for the begginers is the "Groups and Users" client under KDE, The KUser. Sometimes it changes permissions and modify the "sudo" configurations and root/user passwords, behaviour of the graphical Sudo etc...i dont reccomend KUser, specially in old versions.

[cmost]

Good to know! Thank you Fitzcarraldo for explaining the differences.