nemozone

If you try to boot a USB with a custom ISO created using Cubic on an EFI system, you encounter an error similar to the following error,Credits):

isohybrid: Warning: more than 1024 cylinders: 2215 isohybrid: Not all BIOSes will be able to boot this device

You need to install syslinux-utils (we need isohybrid Commands in this package):

sudo apt install syslinux-utils

Then use the following command:

sudo isohybrid /path/to/custom_iso.iso

Replace /path/to/custom_iso.iso ISO path generated with Cubic. You can now create a bootable USB from this ISO, and the USB should be usable on EFI systems. You still need to use a host system using EFI to create a custom Ubuntu or Linux Mint ISO with EFI support! You may also need to read the following:

bootiso: easily boot the ISO to a USB drive from the command line Groot simplifies the process of entering Chroot in any Linux distribution

Sources:

https://codepre.com/how-to-customize-ubuntu-or-linux-mint-live-iso-with-cubic.html

https://www.linuxuprising.com/2018/07/how-to-customize-ubuntu-or-linux-mint.html

https://ostechnix.com/how-to-create-a-custom-ubuntu-live-iso-image-with-cubic/

https://pojig.com/create-custom-live-cd-image-cubic-ubuntu/

https://askubuntu.com/questions/741753/how-to-use-cubic-to-create-a-custom-ubuntu-live-cd-image