DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/linux/grub-mkrescue.md

grub-mkrescue

Make a GRUB CD/USB/floppy bootable image. More information: https://www.gnu.org/software/grub/manual/grub/grub.html#Invoking-grub_002dmkrescue.

• Create a bootable ISO from the current directory and save it as grub.iso:

grub-mkrescue --output {{grub.iso}} .

• Create an ISO using GRUB files from a custom directory:

grub-mkrescue --directory {{/usr/lib/grub/i386-pc}} --output {{grub.iso}} {{path/to/source}}

• Use compression for GRUB files when building the image, setting no disables compression:

grub-mkrescue --compress {{no|xz|gz|lzo}} --output {{grub.iso}} {{path/to/source}}

• Disable the GRUB command-line interface in the generated image:

grub-mkrescue --disable-cli --output {{grub.iso}} {{path/to/source}}

• Preload specific GRUB modules into the image:

grub-mkrescue --modules "{{part_gpt iso9660}}" --output {{grub.iso}} {{path/to/source}}

• Pass additional options directly to xorriso:

grub-mkrescue --output {{grub.iso}} -- {{-volid}} {{volume_name}} {{path/to/source}}

• Display help:

grub-mkrescue {{[-?|--help]}}

• Display version:

grub-mkrescue --version