Current kernel installs.
# dpkg --list | egrep 'linux-image|linux-headers'
ii linux-headers-5.15.0-84 5.15.0-84.93 all Header files related to Linux kernel version 5.15.0
ii linux-headers-5.15.0-84-generic 5.15.0-84.93 amd64 Linux kernel headers for version 5.15.0 on 64 bit x86 SMP
ii linux-headers-6.2.0-33-generic 6.2.0-33.33~22.04.1 amd64 Linux kernel headers for version 6.2.0 on 64 bit x86 SMP
ii linux-headers-generic 5.15.0.84.81 amd64 Generic Linux kernel headers
ii linux-headers-generic-hwe-22.04 6.2.0.33.33~22.04.10 amd64 Generic Linux kernel headers
ii linux-image-5.15.0-84-generic 5.15.0-84.93 amd64 Signed kernel image generic
ii linux-image-6.2.0-33-generic 6.2.0-33.33~22.04.1 amd64 Signed kernel image generic
ii linux-image-generic 5.15.0.84.81 amd64 Generic Linux kernel image
ii linux-image-generic-hwe-22.04 6.2.0.33.33~22.04.10 amd64 Generic Linux kernel image
Try to remove hwe kernel.
apt purge linux-hwe-6.2-headers-6.2.0-33
The following package was automatically installed and is no longer required:
linux-image-generic-hwe-22.04
The following packages will be REMOVED:
linux-generic-hwe-22.04* linux-headers-6.2.0-33-generic* linux-headers-generic-hwe-22.04* linux-hwe-6.2-headers-6.2.0-33*
Removing linux-generic-hwe-22.04 (6.2.0.33.33~22.04.10) ...
Removing linux-headers-generic-hwe-22.04 (6.2.0.33.33~22.04.10) ...
Removing linux-headers-6.2.0-33-generic (6.2.0-33.33~22.04.1) ...
Removing linux-hwe-6.2-headers-6.2.0-33 (6.2.0-33.33~22.04.1) ...
# apt autoremove --purge
Removing linux-image-generic-hwe-22.04 (6.2.0.33.33~22.04.10) ...
However, linux-image-6.2.0-33-generic is not removed.
# sudo dpkg --list | egrep 'linux-image|linux-headers'
ii linux-headers-5.15.0-84 5.15.0-84.93 all Header files related to Linux kernel version 5.15.0
ii linux-headers-5.15.0-84-generic 5.15.0-84.93 amd64 Linux kernel headers for version 5.15.0 on 64 bit x86 SMP
ii linux-headers-generic 5.15.0.84.81 amd64 Generic Linux kernel headers
ii linux-image-5.15.0-84-generic 5.15.0-84.93 amd64 Signed kernel image generic
ii linux-image-6.2.0-33-generic 6.2.0-33.33~22.04.1 amd64 Signed kernel image generic
ii linux-image-generic 5.15.0.84.81 amd64 Generic Linux kernel image
And when I try to remove kernel manually it tries to load the unsigned version.
# apt purge linux-image-6.2.0-33-generic
The following packages will be REMOVED:
linux-image-6.2.0-33-generic* linux-modules-ivsc-6.2.0-33-generic* linux-modules-ivsc-generic-hwe-22.04*
The following NEW packages will be installed:
linux-image-unsigned-6.2.0-33-generic
I have been down the dependency rabbit hole, except the remaining are all dependencies to 5.15 kernel. Boot still defaults to 6.2, except that it now crashes. I need to return to 5.15 as default kernel as the 6.2 freezes temporary random (CPU race?), in addition I would like to use my ubuntu pro subscription.
Thanks.