Can we change partition size?

I am new here …
I just installed a new nomadBSD ob usb stick. It did partitions automatically.
I tried to install something and got low space.
As I can see I have on / only 3.8 Gb and it is already full.
And all space goes to “home”
So it seems I can’t install any new app…
I must be wrong but what I do wrong?

ok I reinstalled it and trying to see.
by default / has 52 Mb free. So it is not expected to be used.
So it is not what I thought.
The problem appears when I tried to install mysql

ok here what happens:
By default:

Filesystem              Size    Used   Avail Capacity  Mounted on
/dev/label/nomadroot    3,8G    3,5G     52M    99%    /
devfs                   1,0K    1,0K      0B   100%    /dev
tmpfs                    30G     16K     30G     0%    /tmp
tmpfs                    30G    120K     30G     0%    /var/log
tmpfs                    30G    128K     30G     0%    /var/run
procfs                  4,0K    4,0K      0B   100%    /proc
/dev/label/nomadhome     55G     46M     50G     0%    /home
/dev/md0.uzip           6,8G    6,4G    443M    94%    /unionfs/usr/local
/dev/fuse                62G    6,8G     50G    12%    /usr/local
/dev/fuse                 0B      0B      0B   100%    /home/nomad/.gvfs

Then I installed openvpn, sublime, mysql-server
and I got this:

nomad@NomadBSD ~> df -h
Filesystem              Size    Used   Avail Capacity  Mounted on
/dev/label/nomadroot    3,8G    3,5G    1,0M   100%    /
devfs                   1,0K    1,0K      0B   100%    /dev
tmpfs                    28G    172M     27G     1%    /tmp
tmpfs                    27G    136K     27G     0%    /var/log
tmpfs                    27G    136K     27G     0%    /var/run
procfs                  4,0K    4,0K      0B   100%    /proc
/dev/label/nomadhome     55G    883M     50G     2%    /home
/dev/md0.uzip           6,8G    6,4G    443M    94%    /unionfs/usr/local
/dev/fuse                62G    7,7G     50G    13%    /usr/local
/dev/fuse                 0B      0B      0B   100%    /home/nomad/.gvfs

and when I run mysql:

nomad@NomadBSD ~> sudo service mysql-server start

/: write failed, filesystem is full
/usr.local.etc/rc.d/mysql-server: WARNING: failed precmd routine for mysql

Hi there @megaspy,

welcome to the forum.

It is not possible to change the partition size, however, you can move the directories which are using a lot of disk space to /home, and then create a symlink. E.g.:

# mkdir -p /home/var/db
# mv /var/db/mysql /home/var/db
# cd /var/db
# ln -s /home/var/db/mysql .

thank you. It worked.
I moved all /var to /home/var
except /var/run and /var/log
and it works.