I'm not sure I know what you mean by expansion of the pcmcia card, a PCMCIA card goes into the slots the size of credit cards on the side of your laptop, it's 3 or 4 times as thick as a credit card but around the same width & length, they are usually for network cards and modems.
To answer your question, NO, you dont need to worry about PCMCIA to install linux UNLESS you need to do a network install.
Hope that helps
amp2000
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