Support » Fixing WordPress » Upgrading to WP 2.0

  • Information on Upgrading.

    Backing up your database is <u>ESSENTIAL</u>

    A guide on Codex can be found here:
    http://codex.wordpress.org/Upgrading_WordPress

    A guide can also be found here:
    http://www.tamba2.org.uk/wordpress/upgrade2two/

    The guides may differ slightly but both are safe to use. Please take your time and follow them – and if you are unsure, post here first.

    Changelog
    There have been a huge number of changes (500 +) in the core. Studying Trac will show you all the changes if you are keen on reading that. There is not and will not be a changelog here. It is highly recommended that you fully replace the core files.

    New in 2.0
    Have a read:
    http://asymptomatic.net/2005/11/29/2135/whats-new-in-wordpress-20/

    Multi-user blogs
    There have been significant changes to the user levels. If you have different users, you must satisfy yourself how this will affect your blog. If you run any sort of plugin that restricts what different users see or can do depending on their level you must be confident about the upgrade. Check everything – do not come back here complaining about user levels if you have not checked and made absolutely sure you know exactly what will happen. The place you need to check is http://codex.wordpress.org/Roles_and_Capabilities

    Plugins I
    This page has details: http://codex.wordpress.org/User:Matt/2.0_Plugin_Compatibility
    Check FIRST. Please don’t upgrade and then say the plugins do not work. There are many plugins that break. Check first and if you need to contact the author, ask nicely 🙂

    Plugins II
    Deactivate plugins before upgrading. If you do not you may get errors and the advice here will be to delete those plugins. Your choice.

    Problems ?
    If you experience any, post to this thread. Please give us lots of information such as:
    Your site
    Your host
    The precise error
    What you have done to try and mend the blog
    If you really did follow the full upgrade instructions. We can tell you know… 🙂

    Also, do not just say “I have the same problem” as someone else – you probably haven’t – you should state your problem in full, along with what you have done.

    And please remember – all the help you get here is provided by other members.

    (from the wonderful Podz)

Viewing 15 replies - 16 through 30 (of 102 total)
  • Sounds like one of your plugins is not WordPress 2.0 compatible (the user level system has completely changed in this new version).

    See this thread: http://new.wordpress.org/support/topic/49917

    Yahoo Web Hosting set up my account automatically with an RC for WP 2.0 and will upgrade automatically to WP 2.0. Do I need to do anything specifically, or will Yahoo take care of the upgrade behind the scenes?

    Ah ok. I installed everything on a new site (the old blog is in tact). The problem is now I can’t access my new admin panel; it just keeps redirecting back to my old installation.

    Jewels: unless you made a copy of your database before upgrading, there is no sense in keeping your old copy. The upgrade broke your old install as the WordPress 2.0 database structure is NOT backwards compatible.

    Yahoo Web Hosting set up my account automatically with an RC for WP 2.0 and will upgrade automatically to WP 2.0. Do I need to do anything specifically, or will Yahoo take care of the upgrade behind the scenes?

    You will have to contact Yahoo for that, we only handle support for individual installations of WP on personal domains. Sounds like a hybrid of fantastico. If you are running a RC without problems, I’d simply leave it until yahoo handles it on their end, especially not knowing the full details of how the installs go, there.

    jewels, did you change the URI in the blog before you moved it to a new domain? If not, you may have to delve into the world of MYSQL to change the URI. Report back on the change, and we’ll be able to direct you to the proper resource.

    The problem is now I can’t access my new admin panel; it just keeps redirecting back to my old installation.

    If you copied the entire db, then it still has your old settings. One quick fix is to (wait for it) make sure you have a copy of the options table – then delete the options table (i hate recommending deletion btw ;).

    re-run the upgrade and the options table will be re-created (with default settings).

    .. or – you can risk it all and hack the DB via phpmyadmin or the like (which I’m not a big fan of). 😀

    Ouch. No I never did change the URI. How easy would it be to change it directly?

    Jewels, take a look at this link, and if it seems like something you feel comfortable tackling..if not, check back here, and we can find another solution. Just make sure you keep the backups handy, as they may come into play soon.
    http://www.tamba2.org.uk/wordpress/site-url/

    Should I change the site URL before or after running upgrade.php?

    I emptied the database and re-uploaded a backup since my old installation was affected somehow (it’s on a completely different site with a different database, user and password so how it broke it beyond me).

    Jewels, try this tutorial
    http://www.tamba2.org.uk/wordpress/move/

    it’s for moving your blog to a new domain.

    I have everything working fine on my new domain now. I guess I could just delete my old installation, although I don’t understand why it broke.

    Thanks for the help.

    I guess I could just delete my old installation, although I don’t understand why it broke.

    If you did a backup and restore or copy of the wordpress db, then the original settings will go with it – which might point to the old location – which will be incorrect if there is a new location for the wp files.

    I followed the tamba2 guide (quick version) and it worked just great. Thanks a lot!!

    Having a weird effect with one blog post-upgrade. Everything seems to work correctly, including writing a new post, EXCEPT for editing existing posts. That does not work; what happens when I click Edit from the Manage page is that the Write page opens, the CSS is loaded (I can see the editor switch to the toolbar-enabled view, is what I mean) and then the page jumps to the permalink for the post.

    I’ve tried disabling all plugins one at a time but no change. This doesn’t happen with the other install of WP2 I have on the same server, with most of the same plugins.

    Would really appreciate any constructive suggestions.

Viewing 15 replies - 16 through 30 (of 102 total)
  • The topic ‘Upgrading to WP 2.0’ is closed to new replies.