sudo apt upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.
1 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Setting up linux-firmware (1.173.18) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-99-generic
update-initramfs: Generating /boot/initrd.img-4.15.0-96-generic
update-initramfs: Generating /boot/initrd.img-4.15.0-91-generic
update-initramfs: Generating /boot/initrd.img-4.4.0-131-generic
WARNING: missing /lib/modules/4.4.0-131-generic
Ensure all necessary drivers are built into the linux image!
depmod: ERROR: could not open directory /lib/modules/4.4.0-131-generic: No such file or directory
depmod: FATAL: could not search modules: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_gq2QMQ/lib/modules/4.4.0-131-generic/modules.order: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_gq2QMQ/lib/modules/4.4.0-131-generic/modules.builtin: No such file or directory
update-initramfs: Generating /boot/initrd.img-4.4.0-119-generic
WARNING: missing /lib/modules/4.4.0-119-generic
Ensure all necessary drivers are built into the linux image!
depmod: ERROR: could not open directory /lib/modules/4.4.0-119-generic: No such file or directory
depmod: FATAL: could not search modules: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_Jb2OPy/lib/modules/4.4.0-119-generic/modules.order: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_Jb2OPy/lib/modules/4.4.0-119-generic/modules.builtin: No such file or directory
update-initramfs: Generating /boot/initrd.img-4.4.0-45-generic
WARNING: missing /lib/modules/4.4.0-45-generic
Ensure all necessary drivers are built into the linux image!
depmod: ERROR: could not open directory /lib/modules/4.4.0-45-generic: No such file or directory
depmod: FATAL: could not search modules: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_2hjMsU/lib/modules/4.4.0-45-generic/modules.order: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_2hjMsU/lib/modules/4.4.0-45-generic/modules.builtin: No such file or directory
update-initramfs: Generating /boot/initrd.img-4.4.0-21-generic
depmod: WARNING: could not open /var/tmp/mkinitramfs_2iAfUm/lib/modules/4.4.0-21-generic/modules.order: No such file or directory
depmod: WARNING: could not open /var/tmp/mkinitramfs_2iAfUm/lib/modules/4.4.0-21-generic/modules.builtin: No such file or directory

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.4.0-21-generic with 1.
dpkg: error processing package linux-firmware (--configure):
 installed linux-firmware package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
 linux-firmware
E: Sub-process /usr/bin/dpkg returned an error code (1)