How can I create a recovery partition to use Find my Mac?

I want to activate Find my Mac on my MBP. The iCloud system preference says I don't have a recovery partition that's required for it. It apparently didn't install when I upgraded to Mountain Lion.
How can I retroactively create a recovery partition? There are no other partitions on the drive (other than the Macintosh HD, of course).
Thanks.
Rob

FIRST, assuming you do not have another Mac of the same model with a working restore, I would suggest using your Lion, mountaint lion or Maverick install to create a bootable system on a flash drive. You will need a DMG image created with Disk Utility from that stick to recreate the restore partition on your mac.
Once you create the bootable USB stick, Use it to log in and follow the below process to back up the restore partition. Then, save the DMG back up anywhere and finish the walk through on your normal operating partition.
Close Disk Utility if it is open.
Open Terminal
Enter the command below
defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool true
Now open Disk Utility and pull down the Debug menu
Click Show Every Partition
Now, select the Recovery Partition and create a new image.
NOTE: The Recovery Partition will need to be made in Read Only format if you wish to restore the image normally with disk utility or by software such as Deploy Studio. If you take an image with Deploy Studio and want it to restore the Recovery Drive normally, you will need to adjust the Work Flow for Image Capture to use the Read Only format. It will slow things down. If you dont use the read only format, the .dmg will not scan properly. This is most likely because the recovery drive already hosts compressed files. That said, this guide WILL restore from even a compressed .dmg image. HERE IS THE WALK THROUGH FOR RESTORING A SCANNED READ ONLY FORMATTED .DMG.
Copy the Recover HD.DMG image to a flash drive
The following must be on an Administrator account
Next, Log on to the admin account of the computer you wish to restore the MLTI Recovery Partition.
Copy the Recovery HD.DMG from your Flash drive to the HD
Enter the following command in terminal
diskutil list
If there is no partition for the restore drive listed, then use Disk Utility to create a GUID Partition keeping in mind the size of the original restore partition. (19 gigs for the MLTI Version of the restore drive)
Open Terminal and enter the following command
sudo asr -noverify -source (PATH FOR DMG IMAGE HERE) -target (PATH FOR RECOVERY HD PARTITION HERE) -erase -noprompt
NOTES: You must replace the () and everything in between with the respective path. You can simple drag and drop the source (your .dmg) and your target (the drive to be restored) while you are typing in terminal.
Enter admin password
In terminal Type the following command
diskutil list
note which disk and slice is the restore partition. It should be /dev/disk0s3, but it could vary a bit.
Now, run the following in terminal
sudo asr adjust --target /dev/disk0s3 --settype "Apple_Boot"
REMEMBER: you may need to replace /dev/disk0s3 with your new restore partition's designation.
Enter Admin Password when prompted
Restart.
Don't forget to enter the following terminal command into the machine you took the Recovery HD image from.
defaults write com.apple.DiskUtility DUDebugMenuEnabled -bool false

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