Comment 5 for bug 1969464

Thought it might get sorted with time and after GA of 22.04 but it looks like not.

sudo apt dist-upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  gir1.2-gnomebluetooth-1.0 gir1.2-mutter-9 libllvm12 libmutter-9-0
  linux-headers-generic-hwe-20.04 linux-image-generic-hwe-20.04 ltrace
  python3.9 python3.9-minimal xul-ext-ubufox
Use 'sudo apt autoremove' to remove them.
The following packages will be upgraded:
  casper gdm3 gir1.2-gdm-1.0 gir1.2-gtk-4.0 google-chrome-stable libgdm1
  libgtk-4-1 libgtk-4-bin libgtk-4-common snapd ubuntu-advantage-tools
11 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
Need to get 114 MB/114 MB of archives.
After this operation, 7,480 kB disk space will be freed.
Do you want to continue? [Y/n] y
Get:1 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libgtk-4-common all 4.6.2+ds-1ubuntu3 [661 kB]
Get:2 http://dl.google.com/linux/chrome/deb stable/main amd64 google-chrome-stable amd64 101.0.4951.41-1 [84.4 MB]
Get:3 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libgtk-4-1 amd64 4.6.2+ds-1ubuntu3 [2,850 kB]
Get:4 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 ubuntu-advantage-tools amd64 27.8~22.04.1 [847 kB]
Get:5 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 gdm3 amd64 42.0-1ubuntu7 [314 kB]
Get:6 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libgdm1 amd64 42.0-1ubuntu7 [61.6 kB]
Get:7 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 gir1.2-gdm-1.0 amd64 42.0-1ubuntu7 [9,878 B]
Get:8 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 gir1.2-gtk-4.0 amd64 4.6.2+ds-1ubuntu3 [217 kB]
Get:9 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 libgtk-4-bin amd64 4.6.2+ds-1ubuntu3 [2,854 kB]
Get:10 http://gb.archive.ubuntu.com/ubuntu jammy-updates/main amd64 snapd amd64 2.55.3+22.04ubuntu1 [21.5 MB]
Fetched 114 MB in 31s (3,639 kB/s)
Preconfiguring packages ...
(Reading database ... 252650 files and directories currently installed.)
Preparing to unpack .../00-libgtk-4-common_4.6.2+ds-1ubuntu3_all.deb ...
Unpacking libgtk-4-common (4.6.2+ds-1ubuntu3) over (4.6.2+ds-1ubuntu2) ...
Preparing to unpack .../01-libgtk-4-1_4.6.2+ds-1ubuntu3_amd64.deb ...
Unpacking libgtk-4-1:amd64 (4.6.2+ds-1ubuntu3) over (4.6.2+ds-1ubuntu2) ...
Preparing to unpack .../02-google-chrome-stable_101.0.4951.41-1_amd64.deb ...
Unpacking google-chrome-stable (101.0.4951.41-1) over (100.0.4896.127-1) ...
Preparing to unpack .../03-ubuntu-advantage-tools_27.8~22.04.1_amd64.deb ...
Unpacking ubuntu-advantage-tools (27.8~22.04.1) over (27.7~22.04.1) ...
Preparing to unpack .../04-gdm3_42.0-1ubuntu7_amd64.deb ...
Unpacking gdm3 (42.0-1ubuntu7) over (42.0-1ubuntu6) ...
Preparing to unpack .../05-libgdm1_42.0-1ubuntu7_amd64.deb ...
Unpacking libgdm1 (42.0-1ubuntu7) over (42.0-1ubuntu6) ...
Preparing to unpack .../06-gir1.2-gdm-1.0_42.0-1ubuntu7_amd64.deb ...
Unpacking gir1.2-gdm-1.0:amd64 (42.0-1ubuntu7) over (42.0-1ubuntu6) ...
Preparing to unpack .../07-gir1.2-gtk-4.0_4.6.2+ds-1ubuntu3_amd64.deb ...
Unpacking gir1.2-gtk-4.0:amd64 (4.6.2+ds-1ubuntu3) over (4.6.2+ds-1ubuntu2) ...
Preparing to unpack .../08-libgtk-4-bin_4.6.2+ds-1ubuntu3_amd64.deb ...
Unpacking libgtk-4-bin (4.6.2+ds-1ubuntu3) over (4.6.2+ds-1ubuntu2) ...
Preparing to unpack .../09-snapd_2.55.3+22.04ubuntu1_amd64.deb ...
Warning: Stopping snapd.service, but it can still be activated by:
  snapd.socket
Unpacking snapd (2.55.3+22.04ubuntu1) over (2.55.3+22.04) ...
Preparing to unpack .../10-casper_1.470_amd64.deb ...
Unpacking casper (1.470) over (1.468) ...
dpkg: error processing archive /tmp/apt-dpkg-install-4Qrvzm/10-casper_1.470_amd6
4.deb (--unpack):
 trying to overwrite '/usr/share/initramfs-tools/scripts/casper-premount/20iso_s
can', which is also in package lupin-casper 0.57build1
update-initramfs: deferring update (trigger activated)
Errors were encountered while processing:
 /tmp/apt-dpkg-install-4Qrvzm/10-casper_1.470_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)