$ sudo apt upgrade
[sudo] password for aaron: 
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:
  linux-headers-6.1.0-30-amd64 linux-headers-6.1.0-30-common
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
3 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up initramfs-tools (0.142+deb12u3) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-image-6.1.0-37-rt-amd64 (6.1.140-1) ...
/etc/kernel/postinst.d/dkms:
dkms: running auto installation service for kernel 6.1.0-37-rt-amd64.
dkms: autoinstall for kernel: 6.1.0-37-rt-amd64.
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-6.1.0-37-rt-amd64
raspi-firmware: missing /boot/firmware, did you forget to mount it?
run-parts: /etc/initramfs/post-update.d//z50-raspi-firmware exited with return c
ode 1
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
dpkg: error processing package linux-image-6.1.0-37-rt-amd64 (--configure):
 installed linux-image-6.1.0-37-rt-amd64 package post-installation script subpro
cess returned error exit status 1
dpkg: dependency problems prevent configuration of linux-image-rt-amd64:
 linux-image-rt-amd64 depends on linux-image-6.1.0-37-rt-amd64 (= 6.1.140-1); ho
wever:
  Package linux-image-6.1.0-37-rt-amd64 is not configured yet.

dpkg: error processing package linux-image-rt-amd64 (--configure):
 dependency problems - leaving unconfigured
Processing triggers for initramfs-tools (0.142+deb12u3) ...
update-initramfs: Generating /boot/initrd.img-6.1.0-37-rt-amd64
raspi-firmware: missing /boot/firmware, did you forget to mount it?
run-parts: /etc/initramfs/post-update.d//z50-raspi-firmware exited with return c
ode 1
dpkg: error processing package initramfs-tools (--configure):
 installed initramfs-tools package post-installation script subprocess returned 
error exit status 1
Errors were encountered while processing:
 linux-image-6.1.0-37-rt-amd64
 linux-image-rt-amd64
 initramfs-tools
E: Sub-process /usr/bin/dpkg returned an error code (1)
aaron@Baobab-base:~$