SVN Error: Expected fs format between ‘1’ and ‘3’; found format ‘4’
Which Subverson tool did you use to create the repository? TortoiseSVN? Your TortoiseSVN may be newer, a 1.6.x release, then your 1.5 command line client and svnserve, so svnserve 1.5.x cannot serve a 1.6.x repository. In my fsfs repository created with svnadmin 1.6.1, the db/format file contains $ cat repos/db/format 4 layout sharded 1000