I've found 6 web sites so far that had instructions on setting up a UEFI USB flash to boot, but all have failed. Some actually create a UEFI Flash that my test usb is seen as being a UEFI flash, but the boot fails?
The last one I fully documented the steps from page, but the resulting flash doesn't even show up as an UEFI Flash. Probable due to the failure of the grub2-install option?? grub2-install: error: this utility cannot be used for EFI platforms because it does not support UEFI Secure Boot. So, it seems it worked on some system before, but fails with Fedora 33 at least?? Don't want to create a UEFI Secure Boot, but just a UEFI Boot?? #https://linuxconfig.org/how-to-create-multiboot-usb-with-linux parted -s /dev/sdb mklabel msdos parted -s /dev/sdb mkpart primary 1MiB 551Mib parted -s /dev/sdb set 1 esp on parted -s /dev/sdb set 1 boot on mkfs.fat -F32 /dev/sdb1 parted -s /dev/sdb mkpart primary 551Mib 100% mkfs.ext4 /dev/sdb2 mkdir /media/{efi,data} mount /dev/sdb1 /media/efi mount /dev/sdb2 /media/data # Installing legacy grub2 grub2-install \ --target=i386-pc \ --recheck \ --boot-directory="/media/data/boot" /dev/sdb # Installing grub for efi grub2-install \ --target=x86_64-efi \ --recheck \ --force \ --removable \ --efi-directory="/media/efi" \ --boot-directory="/media/data/boot" ## grub2-install: error: this utility cannot be used for EFI platforms because it does not support UEFI Secure Boot. mkdir /media/data/boot/iso chown 1000:1000 /media/data/boot/iso cd /media/data/boot/iso/ cp /home/msetzerii/g4l0.60alpha/g4l-v0.60.iso . cd /media/data/boot/grub2 #create grub.cfg with these lines. #menuentry "G4L" { # isofile="/boot/iso/g4l-v0.60.iso" # loopback loop "${isofile}" # linux (loop)/isolinux/bz5x13.14 iso-scan/filename="${isofile}" root=/dev/ram0 # initrd (loop)/isolinux/ramdisk.lzma #} Have just got had email chat with Clonezilla developer to see what they have done. Seems they gave up on trying to make a UEFI boot, and have created a live-cd boot of a distro to get around issue. Seems going from boot loaders link syslinux, grub4dos, and regular grub2 with a 10M kernel and 30M ramdisk. With Fedora, it would require the 2G live CD image, and then the downloading of a number of packages that are not included on the live-cd. So, 40M to 2000+M and a bunch of steps. Does anyone know of a process to make a UEFI USB Boot that actual works using Fedora?? Very Frustrated...
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