heads up: follow correct upgrade procedures

["Jonathan A. Kollasch" <jakllsch%kollasch.net@localhost>]

Due to some recent changes to some file system syscalls, it is necessary
to follow correct upgrade procedures to avoid trouble.

Be sure to install new kernel and matching modules and boot the new
kernel before upgrading userland.  Remember that once userland is
upgraded you will not be able to run an older kernel.  Remember that
/rescue will not save you if it has been upgraded beyond the old kernel
too.

	Jonathan Kollasch