Comment 12 for bug 1806108

I did get some errors when trying to install this, but I copied the vmlinuz and initrd to /boot/firmware and I can get an ip now.

I retried the install and still get the errors, here's the log of that:
ubuntu@ubuntu:/mnt$ sudo dpkg -i linux-image-4.15.0-1029-raspi2_4.15.0-1029.31_final1_arm64.deb
(Reading database ... 61742 files and directories currently installed.)
Preparing to unpack linux-image-4.15.0-1029-raspi2_4.15.0-1029.31_final1_arm64.deb ...
Unpacking linux-image-4.15.0-1029-raspi2 (4.15.0-1029.31~final1) over (4.15.0-1029.31~final1) ...
/var/lib/dpkg/info/linux-image-4.15.0-1029-raspi2.postrm ... removing pending trigger
Setting up linux-image-4.15.0-1029-raspi2 (4.15.0-1029.31~final1) ...
Processing triggers for linux-image-4.15.0-1029-raspi2 (4.15.0-1029.31~final1) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-1029-raspi2
flash-kernel: deferring update (trigger activated)
raspi3-firmware: deferring update via initramfs-tools (hook will be called later by the kernel package)
/etc/kernel/postinst.d/x-grub-legacy-ec2:
Searching for GRUB installation directory ... found: /boot/grub
Searching for default file ... found: /boot/grub/default
Testing for an existing GRUB menu.lst file ...

Could not find /boot/grub/menu.lst file. Would you like /boot/grub/menu.lst generated for you? (y/N) /usr/sbin/update-grub-legacy-ec2: line 1101: read: read error: 0: Bad file descriptor
run-parts: /etc/kernel/postinst.d/x-grub-legacy-ec2 exited with return code 1
dpkg: error processing package linux-image-4.15.0-1029-raspi2 (--install):
 installed linux-image-4.15.0-1029-raspi2 package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 linux-image-4.15.0-1029-raspi2