Sorry everyone, this isn't the best tutorial in the world, unfortunately I have been a little short on time, and I meant to get this up earlier. This tutorial will show you how to make a more reliable BackTrack Live USB with Persistence as well as getting you set up to make a Multibootable Live USB if you want. Here we go! 1. Now, partition your USB, I used GParted from the Ubuntu Software Center. The first partition will be for BackTrack. It must a minimum of about 3.75gb and fat32 format. I went for 4gb because I also put Xiaopan on here. 2. Make sure your second partition is of type ext4(I believe ext2 or ext3 will also work) and label it casper-rw. 3. Install Multisystem into Ubuntu via the guide here: Login or Signup to view links / downloads 4. This is a great program, you can make your usb multiboot I you want, and even customize the boot menu in cool ways as you see fit, later. 5. Install BackTrack(BT) 5 with Multisystem without persistence onto the first partition. 6. Now, select BT and click on add persistence mode(the little floppy disk). This can be a small amount, I did 256 mb. 7. Then enter the partition of your usb that has BT on it and either delete the casper-rw file or copy it somewhere if you want to just make sure things go alright. 8. Now, when you boot, at the bottom of your normal list of boot options, there should be an option for persistence following your other BT options. When you boot wit this, everything you do should now be saved in the partition of the usb that you labeled casper-rw. If you select the normal BackTrack Text boot, this will not use your new persistence partition. 9. This way, also, in the event your persistence gets corrupt, you will still have access to your original live boot, without having to remake your live boot usb. You will just have to reformat your casper-rw partition with the same label. (optional)10. After everything seemed to be in order I downloaded DiskInterals Linux Reader (Login or Signup to view links / downloads) on Windows. Find your casper-rw partition and right click on it, save it as an image to your Windows. Now, in the event that your persistence gets corrupted on the casper-rw partition, you can just burn the image over your original casper-rw partition to recover it. I do this every so often when I've made a significant amount of alterations that I want saved. I just make a new image to replace the old one. My set up: 8gb SanDisk USB 3 partitions (4gb fat32 for boot, 1.5gb ext4 for casper-rw, 1.5gb fat32 for casper-rw backup) BackTrack and Xiaopan are both installed on the first partition (did not add a persistence partition for Xiaopan though I am sure you could if you wanted) For now I am using two partitions, one for casper and one to preserve casper. Once I am confident enough that there are no issue I will likely just use the last partition for regular storage use. Though I am becoming increasingly more confident each time I boot without issues. As of yet I have had no issues with BT. I have booted persistent and not persistent a dozen times and even shut them off improperly on purpose and attempted to break it in all the way I have done accidentally in the past and have had absolutely no errors or problems. Prior to figuring this out, I could swear backtrack would break with persistence after every few times of booting cause something would go wrong, or I would hit a snag and have to turn it off improperly then killing it and forcing me to remake my live usb. I would always get the 'EXT2-fs (loop1): error: ext2_lookup: deleted inode' but this method seems to make backtrack's live usb with persistence much more stable and less fragile. Please ask me if anyone has any questions or realize if I missed anything. I hope this helps all of those people who have gotten this error or had problems with it constantly breaking and being overly fragile. I would like to hear your feedback and how well it works for you as well. THANK YOU AND GOOD LUCK!