So i've had my droid 2 for a month now and the very first day i had it i rooted it. But last week i upgraded to the 2.4.0 r2d2 rom and...i lost my root. ive tried every method to get it rooted again. the command lines from the pc, the one click method, and the droid's own command lines...i had made recoveries before with the droid 2 bootstrap so idk if i could use those now and go back to my root. thank you in advance
Do you have Superuser installed? If not, install it from the market. If you already have it installed, launch it and see if it wants to update the superuser binary or not - it will automatically prompt you if that's necessary. Do you see any apps listed in Superuser?
Assuming you have superuser installed and it's running properly, launch the Droid 2 Bootstrap Recovery app (you must have had this installed if you were rooted and installing ROMs - and it should have been re-installed automatically if you did a reset before or after installing a ROM) and select Bootstrap Recovery. If you get a success message, then select launch recovery and you can restore any backup you made before installing 2.4.0.
Better still, if you can get into recovery, you should install one of AngDroid's 2.4.5 ROMs so you're up-to-date.
http://www.droidforums.net/forum/angdroid/88017-green-roms-v1-vzw_2-4-5-base.html
Let us know how things go.