In some cases you may need the sources (kernel source) for your FreeBSD installation. However if you did not select the source package in the installer it will not be installed.
The installation is actually quite simple but is not done via a tool as some
might expect. In former times you could use
sysinstall but that does not
You can either connect via your favourite ftp client (
lftp) to the
official server (or a mirror of your choice) or you can use the
command to retrieve the source package. Be sure to download the correct
version (e.g. use
freebsd-version -k to find out).
% freebsd-version -k 11.1-RELEASE-p10 % fetch ftp://ftp.freebsd.org/pub/FreeBSD/releases/amd64/11.1-RELEASE/src.txz src.txz 100% of 140 MB 23 MBps 00m06s % su - Password: # tar -xzvf src.txz -C / ...
This will extract the sources into the proper locations.