Subversion repo upgrade makes repository unusable

I recently upgraded my subversion server from 1.4.6 to 1.6.11. The repos all seem to work correctly after this. I then try to upgrade a repo by issuing the svnadmin update command, and it produces no errors and says the update is complete. However, I am unable to open the repository after this. I get the following error when开发者_高级运维 trying to open the repo: Could not open the requested SVN filesystem.

I am using Apache, not SVNServe. Any help would be appreciated!

Have you also upgraded your Subversion client to a corresponding compatible version? The client may not be able to understand the newest server filesystem format.

At risk of being downvoted, when we did the same upgrade, we also upgraded the hardware. The permissions were not sorted out on the new filesystem and we received the same error. You didn't mention any file system changes and without knowing what OS you're running this on, you could look there.

The problem with with Apache - I needed to do some configuration changes. Instead I simply installed VisualSVN Server and all my problems went away.

When this happened to me, I needed to re-copy the mod_dav_svn.so modules into the apache modules directory. see: http://svnbook.red-bean.com/en/1.4/svn.serverconfig.httpd.html