Your svn ~/.subversion/config should contain these entries:

*.sh = svn:eol-style=native;svn:mime-type=text/plain;svn:executable
*.lfm = svn:eol-style=native;svn:mime-type=text/plain
*.lrs = svn:eol-style=native;svn:mime-type=text/pascal
*.lpk = svn:eol-style=native;svn:mime-type=text/plain
*.lpi = svn:eol-style=native;svn:mime-type=text/plain
*.lpr = svn:eol-style=native;svn:mime-type=text/pascal
*.lpl = svn:eol-style=native;svn:mime-type=text/plain
*.po = svn:eol-style=native;svn:mime-type=text/plain
*.p = svn:eol-style=native;svn:mime-type=text/pascal
*.pp = svn:eol-style=native;svn:mime-type=text/pascal
*.pas = svn:eol-style=native;svn:mime-type=text/pascal
*.txt = svn:eol-style=native;svn:mime-type=text/plain
*.inc = svn:eol-style=native;svn:mime-type=text/plain
*.xml = svn:eol-style=native;svn:mime-type=text/plain
Makefile = svn:eol-style=native;svn:mime-type=text/plain
Makefile.fpc = svn:eol-style=native;svn:mime-type=text/plain
Makefile.compiled = svn:eol-style=native;svn:mime-type=text/plain

List all branches:
svn ls http://svn.freepascal.org/svn/lazarus/branches

List all tags:
svn ls http://svn.freepascal.org/svn/lazarus/tags

Checkout a fixes branch:
svn co http://svn.freepascal.org/svn/lazarus/branches/fixes_0_9_30 lazarus

Switch an existing to another branch:
svn switch http://svn.freepascal.org/svn/lazarus/branches/fixes_0_9_30