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When installing Ubuntu 19.04 64 bit onto a 32GB USB 3.0 pendrive. I went into the "Something Else" section and created 2 partitions. my Pendrive came under "sdc". Partition 1: type EFI System Partition. 1024MB. Partition 2: type EXT4 with mounting point '/' (without quotes). Atleast 32GB. The install completes with no errors.

Usually at this point i have to enter the bios of my laptop and "register" the efi files so that i can boot into the Ubuntu on the Pendrive.

when i select USB0 it opens up empty. (normally it should a folder "Ubuntu" which would contain grub, shim and 2 more files)

I have tried this several times. But i guess that for some reason the EFI files are not being installed on the ESP partition at all.

any ideas why this is happening or im i doing something wrong.

PS if i disconnect all internal drives and install via the "install ubuntu 19.04" (the first option). it install everything perfectly efi files included.

Abhishek Banerji
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1 Answers1

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There is a fix needed after the install. Ubuntu will likely install the boot files on your PC's EFI partition, even if you selected the USB device. The fix is to copy/move that boot files from the PC's EFI partitions to the USB's EFI partition.

After a long research, I discovered a simple procedure that produces full&portable Ubuntu 19.04 installations on USB drive - even when installing from a Win10 PC.

The resulting Linux on USB can boot on most compatible CPUs. You can customize this Linux, you can update it - like you do with any native Linux install. It even booted on a Mac, however I had to use keyboard, mouse and network on USB.

https://meaningofstuff.blogspot.com/2019/09/linux-ubuntu-1904-full-install-on-usb.html

Mihai Voicu
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