Local padrão onde apt-cacher
armazena seus pacotes é /var/cache/apt-cacher
.
Se você quiser alterá-lo, será necessário executar o script usr/share/apt-cacher/install.pl
.
Em man apt-cacher
Universal Options
cache_dir [/var/cache/apt-cacher]
The directory where apt-cacher will store local copies of all
packages requested. This can grow to many hundreds of MB, so
make sure it is on a partition with plenty of room. NOTE: the
cache directory needs to contain some subdirectories for correct
storage management. If you try to create a custom directory,
please use the script /usr/share/apt-cacher/install.pl or use
the initially created cache directory as example.