That's just the message Linux-libre spits out when there is no free/libre
firmware for something (i.e. the only firmware available is a proprietary
binary blob which has been removed). So what it means is you'll be missing
some hardware functionality, most likely 3-D acceleration or wireless
connectivity.
If the missing functionality is a problem, the proper solution is to replace
the offending hardware. A good, simple place to look for new hardware is
Think Penguin:
http://libre.thinkpenguin.com
If the missing feature isn't something you need, or if you don't notice that
a feature is missing, don't worry about it.
