The UEFI enabled dual-boot has been working very well. Each OS is symlinked to a second drive where my data files are stored.
Following boot-up to the grub screen, and choosing the LL option, LL has at the progress bar screen.
Pressing F4 shows apparently shows at which stage the boot-up is stuck at. The last two lines read as follows:
Starting Enable remaining boot-time encrypted block devices
Stopping Read required files in advance
The odd thing is, if I turn off secure boot and fast boot, it will boot into LL. I would like to get UEFI back as it makes a significant
difference to both speed and the quality of the graphics (goldfinger, unfortunately, I hadn't got to cloning my EFI partition yet!)
I wondered if someone could help me to get this fixed from the live environment with an LL.iso DVD - I'm clueless in this department...
Many thanks
Mike