Add new content database error

I normally prefer to do my operations from central administration. But this morning when I tried to add a new content database to a web application i got the error:


Attaching this database requires upgrade, which could time out the browser session.  You must use the STSADM command 'addcontentdb' to attach this database.

So I connected to the SERVER02 -which is the wfe hosting Central Admin-

And run this command:

C:\Program Files\Common Files\Microsoft Shared\web server extensions\12\BIN>stsadm -o addcontentdb -url http://SERVER02:81 -databasename WSS_Content_01 -databaseserver SERVER01

It worked!