In most case if you follow the instructions exactly, it would be “/dev/sdb”.Identify which drive is target USB drive by examining the output “lsblk”.Select “Try Ubuntu” when presented the option.On Lenovo PC, one has to press ENTER on bootup, and then press F12 to select boot device Different PC have different process to do this.Interrupt normal booting sequence and choose the media USB drive as the boot device.

Insert installation media drive into PC.Step 2 – Prepare the partition table on the target drive Step 1 – flash Ubuntu ISO image to the installation media drive A second USB drive or disk that will hold installed Ubuntu OS, a.k.a.A USB drive that holds Ubuntu ISO image for installation, a.k.a.We assume it support UEFI and GPT partitions which are standards for all recent ones.In the following steps, I will also show an optional feature which creates an encrypted home directory. I suppose this setup gives longer life span of the installation, which potentially allows you to even upgrade your OS later. My goal is to install a standard Ubuntu OS on a USB disk, which can be updated and upgraded just like normal PC case, except that a) it is on a portable USB drive or disk and b) it is portable across different PC’s. Note that the objective is different from so-called LiveUSB ubuntu with persistency, where Ubuntu OS itself will remain as a static ISO image and updates are added on-top in a separate persistent partition. So I wrote down this blog in the hope it might help others, as well as my future self, in the similar shoes. However, due to what I considered a bug in Ubuntu, this is actually harder than it should be. My goal is to install fully updateable Ubuntu 20.04 onto a USB stick, so that I can boot it up with any Intel-based PC’s or laptops.

Ubuntu mini iso usb boot