Upgrading Drupal

I've upgraded a site to Drupal 7. After the upgrade, all the menus and menu blocks as well as the content nodes no longer get displayed. Every URL, whether clean or not, gives a page not found error.

Eg
The requested page "/" could not be found.

During the upgrade I got one error:

System module
7042 - Upgrade the {url_alias} table and create a cache bin for path aliases.

Update #7042

Hi all, I'm a Drupal noob and recently just sent my site live. After uploading my site from localhost, I redirected the main page by editing settings.php so that the /drupal would be cut out from my homepage URL. Unfortunately, now I can't access anything bar the homepage- I created several views for different articles and podcasts and it just says "The requested page "/xxx" could not be found." I also can't access administration, everytime I click on content, structure etc. it just refreshes the homepage. I'm not sure what I've done wrong- any help would be appreciated!

Hello!

I'm a brand new Drupal user, so as expected, I need a little bit of help with something.

I'm coming from WordPress. So far, I like Drupal better. The learning curve was a little bit steeper, but the things I can do with it are absolutely fantastic!

Anyways, this is what I need your help with;

I've undertaken a project in which I'm upgrading someone's website. It is currently running on Drupal 5.1.

I'm creating a new site based on Drupal 7.12. My test site is being hosted on a different server altogether from the current live site.

Based on my experience updating Drupal 6 over the years, I documented 2 methods for updating Drupal core on my blog. they were helpful for me, so I'm sharing them here: maybe they can inspire people facing a Drupal core update.

The last 2 times I did a Drupal 6 minor version upgrade, I had problems with my Blocks settings. The custom Blocks and module Blocks were both effected.

I am upgrading to drupal 7.12 from 6.3 (i think. its 6.SOMETHING)

my plan of attack has gone as follows.
1) in drupal 6 admin switch theme to garland from custom theme
2) disable all personally created modules
3) temporarily remove all my personally created modules
4) update the 3rd party modules to 7.X
5) replace the drupal 6 core stuff with drupal 7 (modules, themes, includes, misc, etc)
6) run update.php

After i run the update, pages do not fully render.

My rendered output is:

"
User account

Array
"

Where if i examine the array i get the form elements. (this is below)

I am wondering if people have had this before where the content/form arrays are not being rendered after an upgrade or if people have ideas as to why this might be. I've been pulling my hair out for over a day now and and real hopeful people have had been able to solve this issue after upgrade

Array
(
[name] => Array
(
[#type] => textfield
[#title] => Username
[#size] => 60
[#maxlength] => 60
[#required] => 1
[#description] => Enter your SITE username.
[#input] => 1
[#autocomplete_path] =>
[#process] => Array
(
[0] => ajax_process_form
)

[#theme] => textfield