Well, this is just weird, and I'll probably figure out the obvious if I just don't look at it, but I have a drupal 6 site up and running (in a drupal6 directory in web root). I decided to add drupal 7, so I downloaded and extracted it to a drupal7 directory in the same web root as the drupal6 directory, did all the other stuff to install (MySQL db, settings.php, chmod, etc), just like I did with drupal 6.
Then I pointed my browser there and got nothing. Checked the permissions, and they are exactly the same as the drupal6 directory. Did an apache reload, and still nothing.
This (sample) address works: 10.10.10.10/drupal6
This (sample) address doesn't: 10.10.10.10/drupal7
I tried .../drupal7/index.php and .../drupal7/update.php just for giggles, but didn't get any :)
I checked the faq pages on Drupal, and it suggests that if everything is blank, then apache is not running (not true in this case). I wonder if there are directives in apache that are interfering (can't imagine what or why)?

Comments
Turn on PHP errors by adding
Turn on PHP errors by adding this to your settings.php in the appropriate section:
ini_set('display_errors', 1);
Refresh and you should see some PHP errors. You might need to, for example, raise your PHP memory limit.
--D
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http://www.woven.org
http://www.davidnotik.com
Drupal 7 has a lot of requirements of its own
There are few additional PHP libraries that Drupal 7 requires, but you should have seen alerts while you were running the installer.
Most likely, you're running into a memory issue with Drupal 7. I'd increase the memory to 64MB in the settings.php file using this command:
ini_set('memory_limit', '64M');@modulist
Uh, BTW, never even got to the installer
usually after getting everything in place, you just point the browser to the folder and bingo the install page pops up, but that didn't happen - just a blank page
hmmm. Maybe I should just try doing the whole thing over
Added the error line, and the memory line (for good measure), and got this:
Fatal error: Call to undefined function hash() in /srv/www/htdocs/drupal7/includes/bootstrap.inc on line 639
line 639 is:
session_name($prefix . substr(hash('sha256', $session_name), 0, 32));
Drupal 7 has some new
Drupal 7 has some new requirements.
http://drupal.org/requirements
Specifically, you need PHP 5.2 or higher. Looks like you're probably on an older version.
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http://www.woven.org
http://www.davidnotik.com
Got it
my phpinfo() shows 5.2.5 is installed
But now that you mention it, maybe I should go through that list. I did it for Drupal 6 before I installed, to make sure there wouldn't be any problems (well, that mostly worked! :P), but I was assuming the requirements wouldn't change that much for 7. Silly me. :}
Thanks all!
I have 2 sites built with
I have 2 sites built with Drupal 6 located in dm6/ and just added one running 7 which is in d7.
If I try and bring up the 7 site it goes to the first Drupal 6 site I created.. If I disable the Drupal 6 virtual hosts in apache then I get the Drupal 7 page will load.