07-07-2016 10:14 AM
07-08-2016 09:49 AM
Okay, well, as far as I can tell, as long as you abandon UEFI boot mode, Linux will boot. Lenovo BIOS boot firmware seems to depend on seeing "Windows Boot Manager" in the EFI boot name space...which is not put there by a Linux installation, of course. I did get a live USB key for Linux Mint 18 to boot in UEFI mode (not sure how), but nothing could get either the "boot repair disk" or a new installation of Linux Mint 18 to boot in UEFI mode on the K450e.
So I installed in the BIOS "Legacy Only" boot mode, and boot in that mode and that works fine. I'm kind of bummed that Lenovo seems to want to make only Windows work in UEFI boot mode, but I don't have any control over that. Unless Lenovo chooses to make Linux compatible UEFI boot firmware available to their users. There was some speculation that some of Lenovo's firnware also looked for/allowed a Redhat Boot Manager in the EFI boot name space, but I'm not using Redhat so didn't verify that one.
So it goes. Switching between Windows and Linux is a little bizarre because of this, having to into the BIOS and switch from "Legacy Only" to UEFI boot modes, but I can at least do it. Not happy about this, probably would not have bought this computer had I known that Lenovo was making this decision for me.
07-08-2016 09:57 AM
Oh yeah, one more thing, I was not able to get a linux mint live USB key to boot in legacy mode (I used rufus to make them, worked well), so had to install from a DVD. Just a tip. You can waste the time that it takes to make a nice, fast live USB 3.0 key that you can install from making and installing from a slow DVD. If you get it right the first time, the DVD install doesn't take that long, anyways, I guess *smile*.