*Afterthought: with 16GB to work with, does it make more sense to just install full Ubuntu onto the USB, instead of running live with persistent storage?
Steps to replicate my problem:
- From Ubuntu 14.04 LTS, download the ubuntu-16.04-desktop-amd64.iso and verify md5sum.
- Run Startup Disk Creator and put the iso on a brand new and erased Sandisk Cruzer Glide 16GB USB stick, with 4GB for persistent use.
- Fix the grub persistency issue for UEFI machines, a la USB-live does not save files between sessions
- Boot onto a Dell Inspiron 13 7000 series laptop using one of the USB 3.0 ports.
- Set up wireless and change time/date settings. Reboot, and confirm the changes are permanent.
- Run Software Updater and do the initial set of upgrades.
- Reboot, select grub option 'Try Ubuntu without installing' as usual, then get error after the ubuntu progress dots cycle through white and red several times:
(initramfs) Unable to find a medium containing a live file system.
I tried both the USB 3.0 and 2.0 ports with the same outcome.