I had the idea a few days back to make a portable hard drive that boots Linux. That way I can keep programs with me. The problem is, I can't install an OS because drivers won't work between computers. I tried this with UbuntuGNOME, and I got ERR2ERR3 when I tried to boot.
After researching online I found that a persistent Ubuntu live USB will work perfectly. The problem is, none of the USBs that I made have actually been persistent. I made one with UbuntuGNOME and Ubuntu Desktop. They boot fine, and I can change settings, install programs, and make files. Then, after shutting down and turning back on, all my changes were reverted.
Any help with creating a persistent Ubuntu live USB or any suggestions for what I am trying to accomplish would be greatly appreciated.