Ok here is what i did: I downloaded the PB00IMG.ZIP file, put it on the SD card (not in any folder), shut my phone off, held down the power and send buttons, the boot screen came up, loaded the .zip, and it worked. Then i used the terminal emulator to check for root and the prompt stayed "$".
Which "PB00IMG.ZIP" file?
There have been 4 of them - only one of them will install the S-OFF bootloader, and the other three are "leak" ROMs which will lock you out from getting root or even applying the recent 2.1 OTA.
You can check this by removing your SD card after powering down (or deleting, renaming or moving the PB00IMG.ZIP file so it's no longer in the base folder of the SD card), and then booting into HBOOT by holding down Vol-down and Power/End. If you see S-ON in the top line, then either you didn't install anything, or you made a bad mistake and installed a "leak (non-root)" ROM, (in which case you are screwed).
Assuming you used the correct ROM, you will see "S-OFF" in the top line of the display. Congratulations... but you don't have root yet, only the first (and most important) step is done. That is because the so-called "root PB00IMG.ZIP" file doesn't install a rooted OS; instead, it installs an engineering bootloader (S-OFF) which allows anything to be written to the phone using the "fastboot" tool and image files on your PC. It also installs an early and buggy test release of the 2.1 OS (no one uses this version - they just continue on with the rooting process and replace it with something better.)
The next steps, assuming you burned the correct ROM to your phone, are to:
- Install Amon_RA's recovery tool (using fastboot)
- Downlod a rooted ROM you want to install, and put the zip file for it in the base folder of your SD card.
- Boot into the recovery console (Vol-up + Power/End), and use it's menu to install the ROM you copied to the SD card.
You can find instructions for these steps either on this forum or over at XDA... probably both.
Note that the EMA (Eris Master Application) usually takes care of all this stuff for you. But in your case, since you appear to have manually started the rooting process by hand, it might not gracefully skip the steps you've already performed - dunno.
Good Luck.
eu1