Step 1: Download and compile the flashcache
Step 2: Install the flash cache and modules to the initramfs drive
dracut --install "flashcache_load flashcache_create flashcache_destroy flashcache_setioctl dmsetup" initramfs-3.5.1-1.fc17.x86_64.img --force
Step 2.5 Install a hook to load the flash cache volume before bootup. During initqueue/finished stage
Step3: Change the /etc/fstab and grub config to point to a new file system eg. /dev/mapper/cachedev
Step 4: Reboot and drop into dracut shell
Step 5: Create the new flashcache volume
Step 6: Reboot.
Bare Bones instructions..email me for more.
