Installing
3. Installing GRUB Customizer
Then to Install GRUB Customizer in Ubuntu
Simply play:sudo apt install grub-customizer
Authenticate with the User Admin Pass.
If Got “User is Not in Sudoers file” then Look: Solution4. Launching GRUB Customizer
Finally, Launch & Enjoy GRUB Customizer.
Or from Shell with:
grub-customizer
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So Now I am truly Happy if My Guide could Help you to Quick-Start with GRUB Customizer on Ubuntu 24.04 Noble!