Unable to boot on Asus UX51VZ [SOLVED]

[daviddem]

Just to try it and see what happens.

At boot access the bios setup.
Just as it boots and before Grub boot loader takes over.
Usually press and hold F2 key will bring up bios setup.
Look for something about disable secure boot.
Disable secure boot.
See if that helps any.

Could have legacy boot enable as an option.
That should work also.

Wow, dude... success!

Secure boot and fast boot were disabled all along, so I didn't change that. But CSM (legacy boot) was also disabled, since I was trying to boot in UEFI mode and I had had problems when enabling CSM earlier in my attempts to boot other distros (well before the OP).

So I enabled CSM and created the Xenial flashdisk again with Rufus, using "MBR partition scheme for BIOS and UEFI" option and "iso" mode, not dd.

Then I went to Windows advanced startup option and selected "use device". This time, apart from the usual UEFI option of the flashdisk, was also a "hard drive" option, which I chose... and sure enough, Puppy booted with no issue at all, using the nouveau driver and my Nvidia card, in full definition... no special kernel options needed at all.

Still not sure why UEFI wouldn't work though!? Any clue? So far I've managed to boot Arch, Antergos and Neon, and that was all with CSM disabled, so UEFI mode for sure...

[bigpup]

Still not sure why UEFI wouldn't work though!?

Basically, Puppy is not keeping up with all that is needed for full UEFI bios booting.

It is something new to Puppy and to add it to Puppy, someone has to volunteer to do the work.

Some Puppy versions have what is suppose to work for UEFI.
Key word suppose to work!

It is easier to just disable secure boot and or enable legacy boot.

A lot of UEFI bios want to see a GPT partition table on the device trying to boot with.
Not fully supported in Puppy.

Rufus, using "MBR partition scheme for BIOS and UEFI" option

Whatever that is could be a problem for your UEFI bios.

Puppy is still all about support for the old stuff and old ways of computing.

You can not put every possible thing into a 300MB OPS.

[daviddem]

Basically, Puppy is not keeping up with all that is needed for full UEFI bios booting...

OK fair enough. I will mark the thread as solved, and I will also post in the "laptops" section to document what has made it work eventually.