Unable to install PPP

[panilsunil]

I am trying to install PPP as per https://wiki.alpinelinux.org/wiki/Using_HSDPA_modem here. But i am getting the error modprobe: can't change directory to '/lib/modules': No such file or directory. I am using luckfox pico pro/max 256mb SPI. Any solution please.

alpinedev:/lib# apk add ppp
OK: 93 MiB in 122 packages
alpinedev:/lib# modprobe ppp_generic
modprobe: can't change directory to '/lib/modules': No such file or directory

alpinedev:/lib# uname -a
Linux alpinedev 5.10.110 #1 Tue Aug 6 12:48:05 UTC 2024 armv7l Linux
alpinedev:/lib# cat /etc/os-release
NAME="Alpine Linux"
ID=alpine
VERSION_ID=3.20.2
PRETTY_NAME="Alpine Linux v3.20"
HOME_URL="https://alpinelinux.org/"
BUG_REPORT_URL="https://gitlab.alpinelinux.org/alpine/aports/-/issues"