I installed Ubuntu MATE 18.04 on my Lenovo G570 (CPU: Intel Core i3-2310M, GPU: Intel HD Graphics 3000) notebook and it work fine but after approximately one month it didn't boot and ntb listed this error:
Intel UNDI, PXE-2.0 (build 083)
Copyright (C) 1997-2000 Intel Corporation
For Atheros PCIE Ethernet Controller v188.8.131.52(05/18/10)
Check cable connection!
PXE-M0F: Exiting Intel PXE ROM
No bootable device -- insert boot disk and press any key
When i replaced my Ubuntu SSD (with this problem) with my old HDD with windows 7 installed, it boot and worked fine, but when i replaced it with Ubuntu SSD, same problem appeared.
I tried fix it in BIOS, but in my BIOS setup aren't almost any booting options.
I find lots of solutions of this topics, but first: it were for windows, and second: any of these were working.
Thank you for any replies