The IP autoconfiguration options (CONFIG_IP_PNP) are not set in the 64-bit kernel, but they are set in the 32-bit kernels.
Would it be possible to get these config options set in the linux-aarch64 package to make the 64-bit kernel network bootable just like the 32-bit kernel is?
- IP_PNP=y
- IP_PNP_DHCP=y
- ROOT_NFS=y
The options aren't activated unless you use the "ip=dhcp" and "rootfs" kernel command line parameters so enabling these options won't cause any compatibility issues with existing setups.
I'd be happy to submit a PR for it, but the package page doesn't have any links to a git repo that I could see.