A number of folks with less linux knowlege have this problem. Could you please make an entry in the ITT wiki under tips and faqs outlining the steps you took: i) power down ii) connect iii) boot iv) oepn terminal on N810 v) fsck
but with the explicit fsck command. This is easy to do and will help many people frustrated with internal card problems on the N810. And the wiki is easier to use and correct than the many postings here.

Thanks in advance.