Hi Asclepius,
Yes it is...did you follow the guide to download Pacifist and the boot files for Chimera? If you followed that, you should visibly see two files extracted from the i386 folder, which is boot0 and boot1h. When you use the Terminal command, it's simply copying it off the Desktop onto the EFI partition of your drive.
The third you need is your Extras folder. That too (a copy directly from your HD root directory) should be on your Desktop. Once you've located your unique LV UUID with diskutil cs list (created from using the diskutil cs create command where you first created a Fusion physical volume), you need to copy this number and add it to your org.chameleon.Boot.plist under the Kernel Flags:
Say for example your Core LV UUID is
90DA42F0-436B-4544-B9F3-55AE6E4D5EE6
and your Kernel Flags under the Chameleon boot.plist using TextEdit looks like this:
Code:
<key>Kernel Flag</key>
<string>darkwake=0</string>
You then change it to:
Code:
<key>Kernel Flag</key>
<string>rd=uuid boot-uuid=90DA42F0-436B-4544-B9F3-55AE6E4D5EE6 darkwake=0</string>
And save it. Then use the fdisk commands to copy the boot files to your EFI partition header, like this.
(assuming your Fusion 1 SSD is on Port0/disk0 and Fusion 2 HD is on SATA Port1/disk1 and you have Administrator level access via sudo su)
fdisk -f boot0 -u -y /dev/disk0
fdisk -f boot0 -u -y /dev/disk1
Now to copy the boot1h to the OSX Boot partition of each drive:
dd if=boot1h of=/dev/rdisk0s3
dd if=boot1h of=/dev/rdisk1s3
and the boot file and Extra folders to the OSX boot partitions on each drive:
For Disk0:
diskutil mount disk0s3
cp boot /Volumes/Boot\ OS\ X/
Type cp -R Extra /Volumes/Boot\ OS\ X/
diskutil unmount disk0s3
For Disk1:
diskutil mount disk1s3
cp boot /Volumes/Boot\ OS\ X/
Type cp -R Extra /Volumes/Boot\ OS\ X/
diskutil unmount disk1s3
After completing this, you should have a fully working Fusion Drive. If you check under Disk Utility you should see your Fusion Drive would have a Logical Group name and a logical drive name, which can be selected to be used (and booted from Chameleon). From this point onwards if you want you can clone a working Mountain Lion install to your drive with an app like SuperDuper (using the BACKUP ALL DATA option) which will boot like a normal drive.
However you must remember...
if you ever FORMAT the Fusion Drive, it will create a new unique UUID number.
If you don't change the number in your chameleon.Boot.plist in the EFI portions of the drive, you won't be able to use your drive at all. So you will need to use diskutil cs list in Terminal, find your NEW LV UUID, paste this number to your chameleon.boot.plist to your /Extras folder on your desktop, and RECOPY the /Extras folder to the EFI helper portions of BOTH DRIVES using the steps above once again.
I hope that helps!