I have a Lenovo IdeaPad 1 11ADA05 on which I would like to install Kubuntu. I can boot into the live session just fine, everything works (graphics, WiFi, Sound...). However the installer doesn't see the eMMC this machine has. I've played around with different UEFI settings, secureboot on and off, the thing even has a "setup mode" in the UEFI, but nothing seems to make a difference. A generic non-machine specific Windows10 installation USB stick sees the eMMC and installs fine, so I guess it can't be too exotic?!? Here's a hw-probe out of the live session, I can't even tell if the kernel find's the SD-controller to which the eMMC is supposedly connected, can anyone have a look?
https://linux-hardware.org/?probe=5885335d44

It seems to run Kubuntu very nicely and would be a pity if I couldn't install it. The UEFI lists the eMMC as Ramaxel 64GB and furthermore "hard disk" as not installed. I opened the case and found mounting holes to mount an M.2 (I guess), there are also the soldering pads on the PCB but the M.2 socket is not soldered on, so that would only be a last resort solution, if the eMMC can't be used at all...

Looking forward to any hints!