This seems to be the problem:
:: Starte pre-transaction hooks…
(1/1) Remove DKMS modules
==> No kernel 4.9.47-1-lts headers. You must install them to use DKMS!
==> No kernel 4.12.10-1-ARCH headers. You must install them to use DKMS!
I am running the LTS version of Arch.
When I start in normal bootmode I get a black screen. What might be an issue here.
The output of lscpi:
Only way of connecting to the internet is through the Ethernet cable.
ifconfig: wlan0 is not listed
lspci: Network controller: Broadcom Limited BCM43142 802.11b/g/n (rev 01)
Found a .deb package with the required driver pacman U returns an error (damaged package[link from Ubuntu Forums])
also tried: rfkill
Thanks in advance!!