What can I do if sda2 (/share/hdd/conf) is getting full and i cant install ipkg packages anymore?
Best option is to move the /opt directory to the data partition (sda1):
mv /share/hdd/conf/opt /share/hdd/data/opt
rm /opt; ln -s /share/hdd/data/opt /opt
That's it. Thanks to perlguru for the info!
If you are using OpenSlug, you may need to:
mv /media/ram/var /var2
ln -s /var2 /media/ram/var