Upgrade from v2.0e to v2.0f

Remount the disk read/write (remount w).
Make sure to rename or backup files that you have made
changes to (rc.local, snmpd.conf or similar) and kill
the running daemons: cron, klogd, syslogd and dhcpd.
Copy the patch to /tmp and in the / directory do:

tar zxpf /tmp/patch.20e-20f.tar.gz

Remount the disk read-only (remount r).
Restart the daemons (or simply reboot the system).

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

default
etc/.version
etc/crontabs
etc/rc.d/rc.local
etc/snmpd.conf
bin/ping
usr/bin/bc
usr/bin/crontab
usr/bin/wc
usr/sbin/cron
usr/sbin/cronmail
usr/sbin/daemoncheck
usr/sbin/klogd
usr/sbin/syslogd
sbin/arping
sbin/configure
sbin/dhcpd
sbin/rdisc
sbin/tracepath

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

/etc/motd must be edited to say 2.0f instead of 2.0e