How to use the free memory left on the flash drive after installing Kali linux?

Question

linux

I installed it on a 16GB flash drive, Kali (not live), for personal purposes, and the bottom line is, the OS weighs no more than 1-2 gigabytes, that is, there should be at least 11-12 GB left, but now, when installing the update through the terminal (apt-get update && apt-get dist-upgrade), the "read" process starts, and then writes that I do not have enough memory, more precisely, that I have only 300-500MiB free, as I understand it, when installing linux to a flash drive, it hides the rest of the memory. Is it possible to somehow use these 12GB as a "hard drive" for Linux installed on it?
Ps this memory is only useful to me for installing scripts, and for learning the programming language.

Answer 1

Oh sure. The simplest option is to create a partition on the remaining free space (for example, via gparted), format it in ext4 and mount it somewhere after booting. Where to mount - depends on the typical use. If you can’t update (although this is a temporary situation and should be fixed), you can move /var there. Example
sequence:
Mounted a new partition into /tmp/new_var
Transferred ( did not copy ) the contents /var/*
there Unmounted new_var and mounted it already in /var
If everything is correct, added it to fstab
The procedure makes sense when loading in persistence mode.