Comment 7 for bug 1811755

hit the following error installing the test kernel

tim@terry:~/Downloads$ ls *.deb
linux-headers-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb
linux-image-unsigned-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb
linux-modules-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb
linux-modules-extra-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb
tim@terry:~/Downloads$ sudo dpkg -i *.deb
(Reading database ... 214537 files and directories currently installed.)
Preparing to unpack linux-headers-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb ...
Unpacking linux-headers-4.15.0-43-generic (4.15.0-43.46+lp1811755) over (4.15.0-43.46+lp1811755) ...
dpkg: regarding linux-image-unsigned-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb containing linux-image-unsigned-4.15.0-43-generic:
 linux-image-unsigned-4.15.0-43-generic conflicts with linux-image-4.15.0-43-generic
  linux-image-4.15.0-43-generic (version 4.15.0-43.46) is present and installed.

dpkg: error processing archive linux-image-unsigned-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb (--install):
 conflicting packages - not installing linux-image-unsigned-4.15.0-43-generic
Preparing to unpack linux-modules-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb ...
Unpacking linux-modules-4.15.0-43-generic (4.15.0-43.46+lp1811755) over (4.15.0-43.46+lp1811755) ...
Preparing to unpack linux-modules-extra-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb ...
Unpacking linux-modules-extra-4.15.0-43-generic (4.15.0-43.46+lp1811755) over (4.15.0-43.46+lp1811755) ...
Setting up linux-headers-4.15.0-43-generic (4.15.0-43.46+lp1811755) ...
Setting up linux-modules-4.15.0-43-generic (4.15.0-43.46+lp1811755) ...
Setting up linux-modules-extra-4.15.0-43-generic (4.15.0-43.46+lp1811755) ...
Processing triggers for linux-image-4.15.0-43-generic (4.15.0-43.46) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-43-generic
/etc/kernel/postinst.d/zz-update-grub:
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-4.15.0-43-generic
Found initrd image: /boot/initrd.img-4.15.0-43-generic
Adding boot menu entry for EFI firmware configuration
done
Errors were encountered while processing:
 linux-image-unsigned-4.15.0-43-generic_4.15.0-43.46+lp1811755_amd64.deb
tim@terry:~/Downloads$