mkusb can boot from grub 2.04 when pointing to a partition, into which you have cloned from the iso file (so with an iso 9660 file system). The problem is specifically that it does not work in UEFI mode, when grub points to an iso file.
mkusb can boot from grub 2.04 when pointing to a partition, into which you have cloned from the iso file (so with an iso 9660 file system). The problem is specifically that it does not work in UEFI mode, when grub points to an iso file.