Mac OS X: Starting up in Safe Mode (Last Modified: November 19, 2011) specifies

Originally Posted By: Apple
To start up into Safe Mode (to Safe Boot), do this:

1. Be sure your Mac is shut down.

but I forgot to shut down the other day and, seemingly successfully, booted into Safe Mode from a restart (OS X 10.6.8), and I'm wondering whether that somehow compromised the Safe Boot functionality (if such a thing is actually possible)?

Thanks.

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