Upgrading Drupal

Hi!

I am trying to upgrade my Drupal version from 7.14 to 7.23. I am using drush to do it and it works fine until it tries to update the database then it fails with the error:

Working to upgrade from Drupal 6 to 7 following the upgrade text instructions I run into the following issue after running update.php (step 15 in upgrade.txt process):
I can access the upgraded site and follow the main menu to different pages, but nothing is visible on each page except the page title. I cannot log in using sitename/user because the log in block shows only the title not the fill in boxes.

Most odd. I have half a dozen virtual sites on a server. Have upgrading five from 7.23 to 7.24 and then 7.25. With the sixth drush pm-upgrade only offers 7.23 as a recommendation. Whatever I do it just doesn't want to play.

Screen shot

It eludes me why I can not get a simple answer to how to update Drupal Core 7.21 to 7.23.

I have downloaded the module and install the .gz file, however, still get the security update warning. There is so much literature out there, yet no simple step by step on what needs to be done. It is unclear on what to focus on first. Can someone please help? Thank you.

Regards, G. Chalker
http://www.gchalker.com/

Migrating a site from the top of the chain in D6, to D7.24,
we hit a WSOD which manifests itself in in /var/log/messages as:
Directory public://css is not a directory.

digging through the code for a moment, I see that
this error emanates from

includes/file.inc:file_prepare_directory()

which seems to be called from:

includes/common.inc:drupal_build_css_cache()
which builds that broken url starting with:
$map = variable_get('drupal_css_cache_files', array());

But for my database, mid-migration between D6 and D7,

After updating from 7.24 to 7.25, I realized that my css was messed up. It seems they fixed the smacss issue for the styles.css where the import would not reset to its root folder. I forcefully reset it in 7.24 by using @import "../something.css" but now @import "something.css" works and my personal fix is broken. I couldn't find this change in the release notes so just posting it so that the rest of the community knows. Hope this helps someone.