Today Prime created a flashable zip which may help some of you. You should flash this pre-install of Link2SD, but I believe it works after install too. I don't believe you will need the 99Complete file from a previous post in this thread with this zip. I could be wrong, so someone jump in if I am. Prime tweeted the link, so I've reproduced his tweet below.
#cyanogenmod Link2SD Users: This is a link2sd pre-installation zip, it will remove /etc/init.d/05mountsd (mounts to /sd-ext) and replace it with a modified version that mounts (and scans if an issue is detected) the second (ext2/3/4) based SD Card partition using the ext4 driver.
You need to make certain /data/sdext2 exists before flashing the zip/using link2sd...this is a safety measure to prevent any possible mishaps with a previous /data/sdext2 setup.
Link2sd Pre-installation Flashable zip:
http://bit.ly/gpGpKX