FreeBSD: Update the ports tree

Method # tricky (because I am about him not even guess, although should be):

[shell@root]# cd /usr
[shell@root]# rm -rf ports
[shell@root]# sysinstall -> Configure -> Distribution -> ports -> ftp ->choose ftp server with which to merge the ports.

[shell@root]# ls /usr //if you see a catalog of ports — then everything is OK.