Thank you sudodus,
I made a persistent live system on a USB thumb drive using the mkusb version dus, but the USB thumb drive does not appear in the boot menu for his PC. His PC is a Samsung (specs) running on Windows 8.1 Pro. The USB thumb drive also failed to boot on my Acer E5-575 ( specs ), which is just a couple of years old, see the attached photos (Acer Boot Failures 1 &2) of the boot menu screen in sequence for the booting of the Acer E5-575.
On the other hand, the USB thumb drive booted and worked in my Lenovo Y510 ( specs ) and my Qosmio (Toshiba) G55-Q804 ( specs ). See the attached boot photos (LenovoY510 Boot Successes 1 & 2), the second of these photos shows the 5 different Xubuntu live with persistence choices I was given to boot into (sorry about the shakiness of the photo).
I suspect the difference between failures and successes has something to do with Classical Boot vs UEFI booting procedures.
QUESTION: Is there anything I can do to remedy the problem of the thumb drive not booting up (or even showing on the boot menu) for my friend's PC, Samsung (specs) ?
As an aside, after the failure described above, I started to try to make a USB thumbdrive with a fully installed Xubuntu on it as described in the article Run Ubuntu 18.04 From USB Stick using the Qosmio (Toshiba) G55-Q804 ( specs ), but when I got the part of creating a "/dev/sdc2 EFI System Partition of 512MB," there was no "EFI System Partition" choice on the drop down menu for "Use As" in the "Create Partition" box. I am thinking that the lack of a choice may have to do with BIOS vs UEFI (or EFI) in the Qosmio (Toshiba) G55-Q804 ( specs ).
Thanks,
Able
AcerBootFailurePhoto1.jpgAcerBootFailurePhoto2.jpgLenovoY510-BootSuccessPhoto1.jpgLenovoY510-BootSuccessPhoto2.jpg
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