how to revive a deleted directory? (+ svn segfault)

I have used cvs2svn to convert a peice of a repository that was all in
the CVS attic, over to subversion. I didn't omit the last change, which
deleted all the files. Now I want to somehow put the deleted files back
in subversion head. How can I do this?

Here's the first thing I tried:

joey_at_kite:~>svn cp -r PREV file:///svn/joey/flashybrid-trunk file:///svn/joey/foo
svn: A path under revision control is needed for this operation
svn: svn_client__get_revision_number: need a version-controlled path to fetch local revision info.

I tried checking out the base of my repository, and do a svn cp from
PREV, but it fails miserably:

joey_at_kite:~/tmp>svn co -N file:///svn/joey/
A joey/README
joey@kite:~/tmp/joey>svn cp -r PREV flashybrid-trunk foo
zsh: segmentation fault svn cp -r PREV flashybrid-trunk foo

I'm not sure if this is because I did a non-recursive checkout (full
checkout is some 3 gb). I tried a slightly larger partial checkout and
it also segfaults there.

I'm using subversion 0.32.1-1 from debian unstable.

-- 
see shy jo