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Upgrade: 2.5 -> 2.7, Avoiding Gotchas

  1. halninethousand
    Member

    My blog is hosted by Westhost and it's been made clear to me that I have to upgrade my install of WordPress. They have a customized install of WordPress, basically set up to go in the directories they specify. I've also copied it to another directory so I can use it in a domain other than my main one and created the appropriate new tables in the database.

    For some reason, when I try to upgrade from 2.5.1 to 2.7, it won't work on this account. I figure (and the tech on the phone figures) it could be because of the extra tables I've created in the database for the 2nd domain (the error is that it can't back up the database tables).

    I figure the fastest way to handle this would be to uninstall 2.5.1 and install 2.7. The thing is I have a vague memory of doing something similar in the past and getting burned because there was a change in the DB table structure between versions.

    Are there any "gotchas" like that between 2.5.1 and 2.7? My plan is to copy over the WordPress database directory to a backup location, uninstall 2.5.1, then install 2.7, then copy the database directory back to where it was originally. If 2.7 uses the same table and table formats as 2.5.1, that should work without problem. OR if there is a way to log into WordPress once I've upgraded the files and have it upgrade any tables it has to alter, that would likely work as well.

    I'd just like to know what I'm getting into before I try this. Should it work, or is this a dangerous thing to do?

    Thanks for any help or info on this!

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