I got exFAT working with
fuse-exfat and
exfat-utils on my 32 bit LXDE install. Although I haven't experienced any problems, the software is in beta and the developers don't have access to Microsoft's system specifications, so don't do anything mission critical.
These are the steps I followed.
1. I used Synaptic to install
scons and
libfuse-devel, and check that
gcc was installed.
2. I downloaded
fuse-exfat-0.9.8-1.fc17.i686.rpm and
exfat-utils-0.9.8-1.fc17.i686.rpm from
http://code.google.com/p/exfat/downloads/list to ~/Downloads/.
If you are running a 64 bit machine, you will probably want
fuse-exfat-0.9.8-1.fc17.x86_64.rpm and
exfat-utils-0.9.8-1.fc17.x86_64.rpm.
3. I ran the following code:
cd ~/Downloads/
su
rpm --install fuse-exfat-0.9.8-1.fc17.i686.rpm
rpm --install exfat-utils-0.9.8-1.fc17.i686.rpm
exitNow Synaptic recognizes
fuse-exfat and
exfat-utils as installed packages and my external HD auto-mounts.