Removing nvidia-driver-450 (450.66-0ubuntu0.20.04.1) ...
Removing xserver-xorg-video-nvidia-450 (450.66-0ubuntu0.20.04.1) ...
Removing libnvidia-cfg1-450:amd64 (450.66-0ubuntu0.20.04.1) ...
Removing libnvidia-encode-450:amd64 (450.66-0ubuntu0.20.04.1) ...
Removing libnvidia-decode-450:amd64 (450.66-0ubuntu0.20.04.1) ...
Removing nvidia-utils-450 (450.66-0ubuntu0.20.04.1) ...
Removing libnvidia-fbc1-450:amd64 (450.66-0ubuntu0.20.04.1) ...
Removing libnvidia-ifr1-450:amd64 (450.66-0ubuntu0.20.04.1) ...
Removing nvidia-compute-utils-450 (450.66-0ubuntu0.20.04.1) ...
Removing linux-modules-nvidia-450-generic-hwe-20.04 (5.4.0-48.52) ...
Removing nvidia-kernel-common-450 (450.66-0ubuntu0.20.04.1) ...
update-initramfs: deferring update (trigger activated)
cp: cannot create regular file '/cdrom/casper/vmlinuz.new': No such file or directory
dpkg: error processing package nvidia-kernel-common-450 (--remove):
 installed nvidia-kernel-common-450 package post-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping