Critical Description
It is not possible to have more than one person using the same checked out subversion directory tree even if the umask is set so all created files and directories are writable by the group and all group ownership and permissions are set appropriately. It appears that subversion attempts to set the permissions on the entries file even when it already has access to it. Even if it doesn't have write access it should still be able to use and modify it since the .svn directory has group write access and it could rename and recreate the entries file. There error I get when I, for example, try to "svn up" is: svn: Operation not permitted svn: svn_io_set_file_read_write: failed to set file '.svn/entries' read-write The only way to work around this is to have someone log in as root and change the owner to the user actually trying to run a subversion command. This is using version 0.28.2 (r6946)
Original issue reported by erh