Upgrade from v5.1 to v5.2

Remount the disk read/write (remount w).
Make sure to rename or backup files that you have made
changes to (rc.local or similar) and is included in
this upgrade.

Copy the patch to /tmp and in the /tmp directory do:

tar Uzxpf /tmp/patch.51-52.tar.gz

Adjust config files, restart daemons and remount the disk
read-only (remount r). Make sure to set the password and
check the /etc/hosts.allow file.

- - - - - - - - - - - - - - - - - - - - - - - - - - -
Added or changed files (included in the tar file):

-rw-------    1 root     root          798 Apr  5 10:19 ./etc/dhcpd.conf-dynamic
-rw-------    1 root     root         1423 Apr  5 10:19 ./etc/dhcpd.conf-static
-rw-r--r--    1 root     root          506 Apr 15 10:40 ./etc/profile
-r-x------    1 root     root          233 Apr  5 09:26 ./etc/rc.d/rc.dhcp*
-r-x------    1 root     root         6067 Apr 15 10:42 ./etc/rc.d/rc.M*
-rw-r--r--    1 root     root            5 Apr  5 09:57 ./etc/.version
---x------    1 root     root       589240 Apr  5 09:24 ./sbin/dhcpd*
---x------    1 root     root       162704 Apr  5 09:24 ./sbin/dhcrelay*

Stuff that has been removed or must be changed by hand:

Edit /etc/motd to change the version number.