bionic:
ubuntu@sv-b:~$ dpkg -l udev|grep udev ii udev 237-3ubuntu10.39 amd64 /dev/ and hotplug management daemon ubuntu@sv-b:~$ sudo touch /etc/systemd/network/lp1868892.link ubuntu@sv-b:~$ sudo update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.15.0-99-generic ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.img-4.15.0-99-generic | grep lp1868892 lib/systemd/network/lp1868892.link ubuntu@sv-b:~$ sudo mv /etc/systemd/network /etc/systemd/network.abc ubuntu@sv-b:~$ sudo ln -s network.abc /etc/systemd/network ubuntu@sv-b:~$ sudo update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.15.0-99-generic ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.img-4.15.0-99-generic | grep lp1868892 ubuntu@sv-b:~$
ubuntu@sv-b:~$ dpkg -l udev |grep udev ii udev 237-3ubuntu10.40 amd64 /dev/ and hotplug management daemon ubuntu@sv-b:~$ sudo update-initramfs -u update-initramfs: Generating /boot/initrd.img-4.15.0-100-generic ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.img-4.15.0-100-generic | grep lp1868892 lib/systemd/network/lp1868892.link
bionic:
ubuntu@sv-b:~$ dpkg -l udev|grep udev network/ lp1868892. link img-4.15. 0-99-generic img-4.15. 0-99-generic | grep lp1868892 network/ lp1868892. link network /etc/systemd/ network. abc network img-4.15. 0-99-generic img-4.15. 0-99-generic | grep lp1868892
ii udev 237-3ubuntu10.39 amd64 /dev/ and hotplug management daemon
ubuntu@sv-b:~$ sudo touch /etc/systemd/
ubuntu@sv-b:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.
ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.
lib/systemd/
ubuntu@sv-b:~$ sudo mv /etc/systemd/
ubuntu@sv-b:~$ sudo ln -s network.abc /etc/systemd/
ubuntu@sv-b:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.
ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.
ubuntu@sv-b:~$
ubuntu@sv-b:~$ dpkg -l udev |grep udev img-4.15. 0-100-generic img-4.15. 0-100-generic | grep lp1868892 network/ lp1868892. link
ii udev 237-3ubuntu10.40 amd64 /dev/ and hotplug management daemon
ubuntu@sv-b:~$ sudo update-initramfs -u
update-initramfs: Generating /boot/initrd.
ubuntu@sv-b:~$ sudo lsinitramfs /boot/initrd.
lib/systemd/