Some channels for PEAR. Use this to add them:

pear channel-discovery <url>

• pear.php.net
• pecl.php.net
• components.ez.no
• pear.phpdb.org
• pear.phing.info
• pear.symfony-project.com
• pear.phpunit.de
• pear.php-baustelle.de
• pear.zeronotice.org
• pear.phpontrax.com
• pear.agavi.org
• phpsavant.com

Unsupported protocol

If you get the following error message, you have to refresh the channels pear.php.net and pecl.php.net:

pear.php.net is using a unsupported protocal - This should never happen.
install failed

The easiest solution was found in the last post of a thread in the PEAR Forum:

• go to /usr/share/php/.channels/
• delete the files pear.php.net.reg and pecl.php.net.reg
• do a sudo pear update-channels