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$ grub-install -target=x86_64-efi -efi-directory=/tmp/EFI -boot-directory=/tmp/Files/boot -removable -recheck $ sgdisk -new 2::"rem_space": -typecode 2:8300 -change-name 2:"Files" /dev/sdb $ sgdisk -new 1::+50M -typecode 1:ef00 -change-name 1:"EFI" /dev/sdb
#Ubuntu wipefs install
sudo apt-get update sudo apt-get install bcache. Next we will install bcache-tools and create the bcache device. Type n (new gpt partition table) then w (write). Next open up a terminal and wipe the cache and backing partition file systems: sudo wipefs -a /dev/sda2 sudo wipefs -a /dev/sdb3. $ sgdisk -zap-all /dev/sdbĬreate a new gpt (partition table), using fdisk $ fdisk /dev/sdb Create a grub.cfg file pointing towards your ubuntu installation.Īssuming usb device is /dev/sdb.Now I don't know if you will be able to access the second partition from windows. Now create another partition name it Files.Create a partition no less than 50 MB in size. After installing ubuntu dont remove the intallation media. I think running ubiquity with -b flag should do the trick. first install ubuntu without bootloader.Using this script as an example this can be achieved. You can do it by simply adjusting some steps used to create multibootusb. What you are trying to achieve is create a partition install ubuntu on it without the bootloader then use bootloader installed on usb drive to boot the ubuntu installation.