In a nutshell, persistent BackTrack 4 (BT4) will work if using a casper-rw named partition or a casper-rw named loop file.

However, I am not able to make the loop file option work. Any one can help?


steps that I followed to create the persistent loop file:
Linux Tips: Create a larger casper-rw loop file for your live usb from Linux

Posts that related to my question (but no answer)
http forums.remote-exploit.org/backtrack-4-general-support/28397-persistent-cd.html
http forums.remote-exploit.org/discussioni-generali/28430-installare-backtrack-4-persistent-mode-su-chiavetta-usb.html
http forums.remote-exploit.org/backtrack-4-howto/23652-bt4-usb-installation-noob-proof-tutorial.html

http forums.remote-exploit.org/search.php?searchid=4680653
(Search: Keyword(s): persistent casper )

Please help.

*EDIT*: PS, I'm experienced Debian user, and not too sure how the versioning works in Ubuntu. I mean, since BT4 is based on a old version of Ubuntu, how current is casper? Is there any online man page for the version of specific casper that BT4 uese?