Lenovo Thinkpad Yoga 260 w/Lenovo ThinkPad USB 3.0 Ethernet Adapter FRU:03x6903

[sudburr]

Alrighty… Murphy just showed for work.

All four good USB-based .efi solutions now hang .

bzimage... ok
init.xz... ok
then nothing

grrr … argh

[Tom Elliott]

@sudburr And if you use the 7156 labelled file?

[Tom Elliott]

I suppose you could also try working-RC-26 files. I updated ipxe files yesterday I believe.

[george1421]

@sudburr I guess I would have to ask the question, how many of these weird systems that will not pxe boot do you have to deal with? The answer may be to just dig a hole and fill it with these devices.

For efi devices building a boot drive is pretty simple. It would also be interesting to see if you can skip iPXE entirely by using grub to boot into FOS via https://forums.fogproject.org/topic/7727/building-usb-booting-fos-image

[sudburr]

@george1421 More than you can shake a several dead cats at.

[george1421]

@sudburr Have you tried the magical 7156 version that Tom talked about? That actually is a legacy iPXE kernel that seems to work well with the surface pros.

[sudburr]

@george1421 Yes, scroll up to the `More interesting news’.

[sudburr]

@Tom-Elliott Already have. Scroll up to the `More interesting news’.

[sudburr]

And now… the 4 magic USB .efi solutions are working again. o_O

[george1421]

@sudburr ok so I’m a bit confused. It appears that you can network efi boot these devices. Is your goal to legacy boot these devices?

I can understand why the usb booting would work over network booting the same iPXE kernel if the netboot code is fault in the yoga’s firmware. We have seen the hand-off between firmware and iPXE fail on some of these lenovos in the past.

[sudburr]

Just trying to find the path of least resistance given our environment. The 4 USB .efi solutions are now working again. Murphy has passed out in the corner.

[sudburr]

@george1421 Like I mentioned above, the Lenovo ThinkPad 13 works perfectly with the same BIOS setup. No need for the USB solution that the Yoga 260 requires for UEFI/Legacy dual booting. I fully believe the problem is entirely with the firmware on the Yoga.

Both work better now than they did 4 months ago with the BIOS version available then.