A first word for the impatient: I'm not aware of a way to have a writable ext2fs filesystem on MacOSX for production use.
Two options I came over to achieve it:
- A sourceforge project Mac OS X Ext2 Filesystem
- Google's MacFUSE together with ext2fuse
They are both instable and I've seen both of them causing filesystem damage. However both of them are pretty close to working. files can indeed be created, modified and deleted. Just not always.
While bugs in the "Mac OS X Ext2 Filesystem" will cause a kernel panic and make you loose everything unsaved at the time they happen, bugs in the 2nd option will make you loose only the changes you were trying to save to your filesystem when you hit the bug. That makes this option a little bit more convenient and besides, gdb can be used for debugging the filesystem without needing a second machine.
