Things to know before installing Linux on a USB I’ll share a neat trick for installing Ubuntu or other Linux distributions on a USB without messing up with the bootloader of the host system and the system on the USB.īefore you start following the tutorial, read it entirely and then go about doing it on your system. This fails the entire idea of having a portable Linux USB, right? The Linux USB you created won’t boot on other systems because its EFI files are on the ESP partitions of the system which was used to install Linux on the USB.The system you used for installing Linux on USB may not boot and end up with a grub error if you don’t have the Linux USB plugged in.This means that the Linux installed on the external USB will be the last to update and control the bootloader. Even if you choose to install bootloader on the external USB, it doesn’t work if hard disk already has an ESP partition While installing Linux, even if you choose the USB as the destination for the bootloader, the existing ESP partition is still used for placing the EFI file for the new distribution. A system can only have one active ESP partition at a time and this causes issues. The one major problem with this setup is bootloader installation on UEFI systems. The available tutorials on the internet miss the most crucial part: the bootloader. The procedure does not seem very different from installing Ubuntu on an actual hard disk. This means having a portable Ubuntu Linux on a USB that you can plug it in to any computer, use it, and save your work on the USB like it was an actual hard disk. Not the regular live USB with persistence but the actual Ubuntu installed on a USB disk. Several of It’s FOSS readers requested a tutorial on installing Linux on a USB. Normally, any changes you made to your live distribution are lost and this limits the usage of the live USB. It is also used for installing Linux on computer's hard disks. A live USB is used for testing the distribution.
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