Jay Saint says to Ubuntu 台灣社群
menuentry "Ubuntu 18.04.3 LTS (x86-64 desktop livecd)" { set isofile="/iso/ubuntu-18.04.3-desktop-amd64.iso" loopback loop $isofile linux (loop)/casper/vmlinuz iso-scan/filename=$isofile file=/cdrom/preseed/ubuntu.seed boot=casper quiet splash --- initrd (loop)/casper/initrd }