An image written by GNOME-DISKS failed (2020-07-10 daily) to boot on my dc7700 & dc7900, I just didn't add it to the detail at the top.
I re-wrote the current Lubuntu daily (2020-07-13) to thumb-drive using GNOME-DISKS *Restore-Disk-Image and tried to boot it..
and a GNOME-DISKS Restore-Disk-Image fails to boot on dc7700, or dc7900 via F9 to select thumb-drive, the brief flashing of thumb-drive already mentioned before it boots the grub on the local hdd..
The GNOME-DISKS thumb drive however booted on hp 8200.
@Norbert (nrbrtx), please note comment #42
An image written by GNOME-DISKS failed (2020-07-10 daily) to boot on my dc7700 & dc7900, I just didn't add it to the detail at the top.
I re-wrote the current Lubuntu daily (2020-07-13) to thumb-drive using GNOME-DISKS *Restore-Disk-Image and tried to boot it..
and a GNOME-DISKS Restore-Disk-Image fails to boot on dc7700, or dc7900 via F9 to select thumb-drive, the brief flashing of thumb-drive already mentioned before it boots the grub on the local hdd..
The GNOME-DISKS thumb drive however booted on hp 8200.