I am trying to make my usb pen drive bootable according to this: https://www.pcsuggest.com/create-a-multiboot-usb-drive-with-grub-in-linux/, what I have done:
# fdisk /dev/sdb
#made new partition /dev/sdb1 4GB
# mkfs.vfat -F 32 /dev/sdb1
#vfat filesytem
# mount /dev/sdb1 /mnt; cd /mnt; mkdir boot boot_iso
#mount, make 2 dirs
# grub-install /dev/sdb --target=x86_64-efi --boot-directory=boot/ --force-extra-removable --force
#install GRUB
which triggered error:
Installing for x86_64-efi platform.
grub-install: error: cannot find EFI directory.
What should I do? I do not have any EFI directory, I want to create one
grub-install /dev/sdb2 --target=x86_64-efi-signed
? – Herdsman Jul 11 '20 at 12:50