:-)
Finally got it!!! Seems like a buggy BIOS (the latest version)...
If you have ThinkPads please check if you have the same issue!
https://download.lenovo.com/bsco/index.html#/graphicalsimulator/ThinkPad%20X13%20AMD%20(20UF,20UG)
Of course, in:
Config -> Network
you have to enable:
UEFI IPv4 Network Stack [x]
but it won't help...
...until you enter
Startup -> Boot Mode
and change [Quick] to [Diagnostics].
In theory it's just a question of messages displayed on the screen
during boot-up and nothing more. In fact with [Diagnostics] it always
works fine and with [Quick] - never; something during the initialization
happens too quickly or it's intended for Windows users. I've repeated
the experiment with both configurations 10 times and the results were
always the same...
Best regards,
Marek
On 10/14/25 11:49 AM, Marek Kozlowski wrote:
:-)
On my desktop everything works fine. But, unfortunately, on my ThinkPad
X13 G1 AMD it doesn't.
In UEFI I can see my ethernet card (the correct MAC). Under Linux (Arch)
I can see it from lspci:
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 0e)
and ifconfig and I can use it correctly for connecting.
Unfortunately in GRUB after:
grub> insmod efinet
grub> net_ls_cards
I still see NO interfaces. I need it for 'net_dhcp' and remote (tftp)
grub.cfg location. I guess that some low-level driver (in ArchLinux it
is the linux-firmware meta-package) but I'm not sure if and how can I
initialize it correctly at the level of GRUB. Any help welcome!
Best regards,
Marek
