Title: errors during database upgrade
Last modified: August 19, 2016

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# errors during database upgrade

 *  [salemdesign](https://wordpress.org/support/users/salemdesign/)
 * (@salemdesign)
 * [16 years, 4 months ago](https://wordpress.org/support/topic/errors-during-database-upgrade/)
 * I needed to upgrade a WP 2.1.2 implementation to WP 2.9.1
 * With WP 2.1.2, an automatic upgrade was not possible.
 * So I used the manual approach, i.e. turn off the plugins, delete everything but
   wp-content, wp-config.php, etc. and then uploaded the new WP 2.9.1 files and 
   directories.
 * I then navigated to the mydomain.com/wp-admin directory which triggered the upgrade
   sequence. I got a screen saying that the database would need to be upgrade and
   clicked to start that process.
 * But during the database upgrade, a number of errors scrolled by indicating that
   certain records were not being upgraded… But at the the end, I did get a message
   saying that the db upgrade had succeeded.
 * When I checked the upgraded site, most things are working, but a number of pages
   and posts _are_ missing. I assume the missing pages and posts are the ones that
   triggered the errors.
 * I have a number of questions:
    1. Is there any log of upgrade results and errors stored anywhere. And if so, how
       do I access it.
    2. Is there anyway to recover the missing records, fix them, and get them back 
       into the upgraded database.
    3. What causes some records to trigger errors and get rejected.
 * I do have everything backed up but I don’t really want to revert to WP 2.1.2 
   Particularly if I don’t know how to fix the problematic posts and pages.
 * TIA
 * –Doug

Viewing 1 replies (of 1 total)

 *  [jon](https://wordpress.org/support/users/adiant/)
 * (@adiant)
 * [16 years, 4 months ago](https://wordpress.org/support/topic/errors-during-database-upgrade/#post-1375008)
 * Did you do this?
 * > NOTE The wp-content folder requires special handling, as do the plugins and
   > themes folders. You should copy over the contents of these folders, not the
   > entire folder. In some cases, copying the entire folder may overwrite all your
   > customizations and added content.
 * ref. – [http://codex.wordpress.org/Upgrading_WordPress](http://codex.wordpress.org/Upgrading_WordPress)
 * Since you have an older version, I would also review:
    [http://codex.wordpress.org/Upgrading_WordPress](http://codex.wordpress.org/Upgrading_WordPress)
 * Sorry that I don’t have an answer for your questions though. If you missed some
   steps, I’d be inclined to restore the database and original files, and start 
   over.

Viewing 1 replies (of 1 total)

The topic ‘errors during database upgrade’ is closed to new replies.

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 1 reply
 * 2 participants
 * Last reply from: [jon](https://wordpress.org/support/users/adiant/)
 * Last activity: [16 years, 4 months ago](https://wordpress.org/support/topic/errors-during-database-upgrade/#post-1375008)
 * Status: not resolved

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