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<Chapter Id="runtime">
sysctl -w kern.sysv.shmall
</programlisting>
In OS X 10.3, these commands have been moved to <filename>/etc/rc</>
- and must be edited there.
+ and must be edited there. Note that <filename>/etc/rc</> is usually
+ overwritten by OS X updates (such as 10.3.6 to 10.3.7) so you
+ should expect to have to redo your editing after each update.
</para>
</listitem>
</varlistentry>