The truth is, it does work, but I could only get it to work in read-only mode. The software you'll need to install are, in this order:
- OSXFUSE (2.6.0 at time of writing). This is the successor to MacFUSE, which is no longer maintained and should be considered outdated. Make sure to install the MacFUSE compatibility layer when installing OSXFUSE (you may have to choose this explicitly under custom install within the installer).
- Fuse-ext2 (0.0.7 at time of writing). More Fuse-ext2 documentation is available.
- TrueCrypt (7.1a at the time of writing). Make sure to not install MacFUSE within the TrueCrypt installer by un-selecting it explicitly under custom install within the installer.
But if you do require read and write access, I've read that the commercial product, Paragon ExtFS for Mac OS X, will do that for you.