Enable GRUB menu and timeout
Even if you don't multiboot several operating systems it might be useful to show GRUB menu and give a little timeout to pick the right item.
Process is straightforward on Ubuntu – just edit following file:
sudo nano /etc/default/grub
Find following default values:
And change them to following:
Don't forget to propagate GRUB configuration:
I have recently ran that on Linux Mint and it showed following:
Sourcing file `/etc/default/grub' Sourcing file `/etc/default/grub.d/50_linuxmint.cfg' Sourcing file `/etc/default/grub.d/60_mint-theme.cfg' Generating grub configuration file ... Found theme: /boot/grub/themes/linuxmint/theme.txt Found linux image: /boot/vmlinuz-5.3.0-45-generic Found initrd image: /boot/initrd.img-5.3.0-45-generic Found linux image: /boot/vmlinuz-5.3.0-42-generic Found initrd image: /boot/initrd.img-5.3.0-42-generic Found linux image: /boot/vmlinuz-5.0.0-32-generic Found initrd image: /boot/initrd.img-5.0.0-32-generic Adding boot menu entry for EFI firmware configuration done
Note that it mentions theme
/boot/grub/themes/linuxmint/theme.txt – this might be a good chance to give your bootloader some personal touch :)
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My name is Gytis Repečka, I am Data Engineer currently working with PostgreSQL and Linux infrastructure on AWS cloud. Writing code in SQL, Go and Bash. Experienced data professional (Teradata, Informatica) with focus on Inmon's data warehousing architecture (10 years). I enjoy using, promoting and contributing to open source software and love communicating about tech to both advanced and non-tech people.