On a server, I used the svn import command to put files into SVN.
I checked the files out to my local machine, made some changes and then committed back.
Now I want to update the server copy of the files, but using svn update, it shows "skipped '.'" and svn status shows "svn: warning: '.' is not a working copy".
Importing into svn doesn't make what you import a working copy. You have to check it out on the server just as you did locally. From then on it will be a working copy and you can use update.