myuser@myhost:~$ sudo apt-get upgrade

... <NORMAL, EXPECTED OUTPUT REGARDING NON-KERNEL PACKAGES> ...
... <NORMAL, EXPECTED OUTPUT REGARDING NON-KERNEL PACKAGES> ...
... <NORMAL, EXPECTED OUTPUT REGARDING NON-KERNEL PACKAGES> ...

Processing triggers for libglib2.0-0:amd64 (2.48.2-0ubuntu1) ...
Processing triggers for hicolor-icon-theme (0.15-0ubuntu1) ...
Setting up initramfs-tools (0.122ubuntu8.9) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-firmware (1.157.13) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-96-generic

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.4.0-96-generic with 1.
dpkg: error processing package linux-firmware (--configure):
 subprocess installed post-installation script returned error exit status 1
Setting up linux-image-4.4.0-98-generic (4.4.0-98.121) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
The link /initrd.img is a dangling linkto /boot/initrd.img-4.4.0-97-generic
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-98-generic /boot/vmlinuz-4.4.0-98-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.4.0-98-generic /boot/vmlinuz-4.4.0-98-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-98-generic /boot/vmlinuz-4.4.0-98-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-98-generic

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.4.0-98-generic with 1.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-4.4.0-98-generic.postinst line 1052.
dpkg: error processing package linux-image-4.4.0-98-generic (--configure):
 subprocess installed post-installation script returned error exit status 2
dpkg: dependency problems prevent configuration of linux-image-extra-4.4.0-98-generic:
 linux-image-extra-4.4.0-98-generic depends on linux-image-4.4.0-98-generic; however:
  Package linux-image-4.4.0-98-generic is not configured yet.

dpkg: error processing package linux-image-extra-4.4.0-98-generic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-image-generic:
 linux-image-generic depends on linux-image-4.4.0-98-generic; however:
  Package linux-image-4.4.0-98-generic is not configured yet.
 linux-image-generic depends on linux-image-extra-4.4.0-98-generic; however:
  Package linux-image-extra-4.4.0-98-generic is not configured yet.
 linux-image-generic depends on linux-firmware; however:
  Package linux-firmware is not configured yet.

dpkg: error processing package linux-image-generic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-generic:
 linux-genericNo apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                                        No apport report written because MaxReports is reached already
                                No apport report written because MaxReports is reached already
                                                                                               depends on linux-image-generic (= 4.4.0.98.103); however:
  Package linux-image-generic is not configured yet.

dpkg: error processing package linux-generic (--configure):
 dependency problems - leaving unconfigured
Setting up linux-image-4.4.0-97-generic (4.4.0-97.120) ...
Running depmod.
update-initramfs: deferring update (hook will be called later)
The link /initrd.img is a dangling linkto /boot/initrd.img-4.4.0-98-generic
Examining /etc/kernel/postinst.d.
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-97-generic /boot/vmlinuz-4.4.0-97-generic
run-parts: executing /etc/kernel/postinst.d/dkms 4.4.0-97-generic /boot/vmlinuz-4.4.0-97-generic
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-97-generic /boot/vmlinuz-4.4.0-97-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-97-generic

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.4.0-97-generic with 1.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-4.4.0-97-generic.postinst line 1052.
dpkg: error processing package linux-image-4.4.0-97-generic (--configure):
 subprocess installed post-installation script returned error exit status 2
No apport report written because MaxReports is reached already
                                                              dpkg: dependency problems prevent configuration of linux-image-extra-4.4.0-97-generic:
 linux-image-extra-4.4.0-97-generic depends on linux-image-4.4.0-97-generic; however:
  Package linux-image-4.4.0-97-generic is not configured yet.

dpkg: error processing package linux-image-extra-4.4.0-97-generic (--configure):
 dependency problems - leaving unconfigured
No apport report written because MaxReports is reached already
                                                              Setting up perl-modules-5.22 (5.22.1-9ubuntu0.2) ...
Setting up libperl5.22:amd64 (5.22.1-9ubuntu0.2) ...
Setting up perl (5.22.1-9ubuntu0.2) ...
Setting up lshw (02.17-1.1ubuntu3.4) ...
Setting up libnm-gtk-common (1.2.6-0ubuntu0.16.04.4) ...
Setting up libnm-gtk0:amd64 (1.2.6-0ubuntu0.16.04.4) ...
Setting up libnma-common (1.2.6-0ubuntu0.16.04.4) ...
Setting up libnma0:amd64 (1.2.6-0ubuntu0.16.04.4) ...
Setting up network-manager-gnome (1.2.6-0ubuntu0.16.04.4) ...
Setting up snapd (2.28.5) ...
Installing new version of config file /etc/apparmor.d/usr.lib.snapd.snap-confine.real ...
Installing new version of config file /etc/profile.d/apps-bin-path.sh ...
Processing triggers for initramfs-tools (0.122ubuntu8.9) ...
update-initramfs: Generating /boot/initrd.img-4.4.0-96-generic

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.4.0-96-generic with 1.
dpkg: error processing package initramfs-tools (--configure):
 subprocess installed post-installation script returned error exit status 1
Processing triggers for libc-bin (2.23-0ubuntu9) ...
No apport report written because MaxReports is reached already
                                                              Errors were encountered while processing:
 linux-firmware
 linux-image-4.4.0-98-generic
 linux-image-extra-4.4.0-98-generic
 linux-image-generic
 linux-generic
 linux-image-4.4.0-97-generic
 linux-image-extra-4.4.0-97-generic
 initramfs-tools
E: Sub-process /usr/bin/dpkg returned an error code (1)
myuser@myhost:~$