Debian Buster update error

[CSO@riseup.net]

Hi,
When update buster, it gives the following errors:

Setting up linux-image-4.19.0-6-amd64 (4.19.67-2+deb10u1) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.19.0-6-amd64

gzip: stdout: No space left on device
E: mkinitramfs failure cpio 141 gzip 1
update-initramfs: failed for /boot/initrd.img-4.19.0-6-amd64 with 1.
run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return
code 1
dpkg: error processing package linux-image-4.19.0-6-amd64 (--configure):
 installed linux-image-4.19.0-6-amd64 package post-installation script
 subprocess returned error exit status 1
 Errors were encountered while processing:
  linux-image-4.19.0-6-amd64
  E: Sub-process /usr/bin/dpkg returned an error code (1)

Any ideas how to solve it?

When installing and setting up debian, I use all default setting with
whole disk encryption. So, since the problems seem to be the default
setting of boot section at the time of installation is too small, how do I increase it now when I have full disk encryption?

Also, my hardrive has 500 GB empty space left, so, there are plenty of
space. 

The debian development team probably should increase the default boot
section by 5 times or 10 times in order to meet the inceased software
demands.
Mark