I want to install Ubuntu to a USB hard drive so that it will run on all systems, that can run the LiveCD and store persistent data on a regular ext4 partition rather than a
casper-rw file. In every other way it should behave like a regular Ubuntu installation.
With Startup Disk Creator one is able to put the LiveCD image on a USB-device. Changes can be made persistent but are stored in a file that is limited to a few GB in size. Said persistent file (additionally to being size restricted) has the problem that it isn't readable like data on a normal partition.*
So how do I get the LiveCD on a USB disk in such a way that the changes are stored in a normal partition rather than a persistence file? Also the persistent changes shouldn't be restricted to a few GB in size but use whole partition of many 100 GB if need be.
I suspect there is a tutorial out there for this, but my google-fu is just not good enough to find it.
Sytem should run on all hardware configurations, have full functionality of the LiveCD and be stored on a regular ext4 partiton without using ramdisks and casper-rw. FU casper-rw.
*I know one could mount the casper-rw file from another OS and get to the data this way but that's a hassle.