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[ubuntu] GRUB 2.00 EFI flash drive

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http://ubuntuforums.org – I'm trying to build a flash drive that can boot using EFI and GRUB2. GRUB 2.00-beta6 is able to do this but my Ubuntu host computer has GRUB 1.99-21ubuntu3.4, which lacks the newer grub-install commands. From a downloaded GRUB 2.00 copy I've tried: Code: $ sudo ./grub-install --target=x86_64-efi --boot-directory=/media/sdb1/EFI/BOOT --efi-directory=/media/sdb1 --removable but an error pops up saying "source_dir doesn't exist. Please specify --target or --directory". Does anyone know how to upgrade Ubuntu to GRUB 2.00-beta6 or install GRUB2 to an external disk from the untar (Hardware)