Userspace Filesystem Drivers are becoming more and more popular since they’re portable and have less headache of platform specific filesystem driver issues. For example, NTFS-3G project provides the full read/write support for NTFS under Linux and MacOSX while living in userspace.
I recently discovered an open source project called “fuse-ext2” which is an implementation of Ext2/Ext3/Ext4 filesystem driver in userspace. Before this one, there was an ext2-only native kernel extension (kext) implementation. So I had no write access to my Ext3 and no read access to Ext4 file-system at all.
To use and enable experimental write support for your Ext2 partition, follow these steps :
- Download and install NTFS-3G Package which includes FUSE libraries.
AFAIK NTFS-3G has been renamed into Tuxera NTFS and is a shareware now. But any way you can download the old GPL version here. it works in both Leopard and Snow Leopard.
- Download fuse-ext2 package
- Use Disk Utility to un-mount current Ext2 filesystems if there are any
- Remove any old filesystem drivers for ext2 from /System/Library/FileSystems (it was ext2.fs for me)
- Install fuse-ext2 package
- Since write support is experimental, it is not enabled by default. To enable it, open /System/Library/Filesystems/fuse-ext2.fs/fuse-ext2.util for edit while having super user privileges.
- Edit the OPTIONS variable at line 207 from
- Open Disk Utility and choose Mount for your filesystem and have fun !