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10.4. Problems After Installation

10.4.1. Trouble With the Graphical GRUB Screen on an x86-based System?

If you are experiencing problems with GRUB, you may need to disable the graphical boot screen. To do this, temporarily alter the setting at boot time before changing it permanently.
At boot time, press Esc to reach the GRUB splash screen. Select the GRUB line, and type e.
Edit the kernel line to remove rhgb.
Press Enter to exit the editing mode.
Once the boot loader screen has returned, type b to boot the system.
If your problems with GRUB are now resolved and you want to make the change permanent, become the root user and edit the /etc/default/grub file.
Within the grub file, comment out the line which begins with GRUB_TERMINAL=console by inserting the # character at the beginning of the line.
Refresh the grub.cfg file by running grub2-mkconfig with root privileges. The changes you have made will then take effect.
You may re-enable the graphical boot screen by uncommenting (or adding) the above line back into the /etc/default/grub file.