Comment 2 for bug 1953171

From DpkgTerminalLog.txt:

Processing triggers for initramfs-tools (0.140ubuntu6) ...
update-initramfs: Generating /boot/initrd.img-5.11.0-1023-raspi
Killed
E: mkinitramfs failure zstd -q -19 -T0 137
update-initramfs: failed for /boot/initrd.img-5.11.0-1023-raspi with 1.
dpkg: error processing package initramfs-tools (--configure):
 installed initramfs-tools package post-installation script subprocess returned error exit status 1
Processing triggers for dbus (1.12.20-2ubuntu2) ...
Processing triggers for linux-image-5.13.0-1011-raspi (5.13.0-1011.13) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-5.13.0-1011-raspi
Killed
E: mkinitramfs failure zstd -q -19 -T0 137
update-initramfs: failed for /boot/initrd.img-5.13.0-1011-raspi with 1.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1
dpkg: error processing package linux-image-5.13.0-1011-raspi (--configure):
 installed linux-image-5.13.0-1011-raspi package post-installation script subprocess returned error exit status 1