Start netbeans with the following option:
# netbeans -J-DsvnClientAdapterFactory=commandline
Configure netbeans to use svn CLI:
Tools -> Options -> Miscellaneous - Subversion
Preferred client: CLI
Path to the SVN executable File:
/home/user/bin
Create a svn shell script to append --ignore-externals for co and update svn commands:
# cd /home/user/bin
# vi svn
#!/bin/bash
CMD=`echo $* | cut -d" " -f1`
if test $CMD = co -o $CMD = update
then
echo "/usr/bin/svn $* --ignore-externals"
/usr/bin/svn $* --ignore-externals
else
echo "/usr/bin/svn $*
/usr/bin/svn $*
fi