Setting preferred state to: beta
Downloading and installing Magento, please wait...
Attempting to discover channel "pear"...
unknown channel "pear" in "pear/PEAR-stable"
invalid package name/package file "pear/PEAR-stable"
Cannot initialize 'pear/PEAR-stable', invalid or missing package file
Attempting to discover channel "connect.magentocommerce.com/core"...
downloading channel.xml ...
Starting to download channel.xml (687 bytes)
....done: 687 bytes
Auto-discovered channel "connect.magentocommerce.com/core", alias "connect.magentocommerce.com/core", adding to registry
unknown channel "connect.magentocommerce.com/core" in "connect.magentocommerce.com/core/Mage_Pear_Helpers"
invalid package name/package file "connect.magentocommerce.com/core/Mage_Pear_Helpers"
Cannot initialize 'connect.magentocommerce.com/core/Mage_Pear_Helpers', invalid or missing package file
... and then later on in the script, an array dump and final error ...
 => Array
 => Package "connect.magentocommerce.com/core/Interface_Install_Default" is not valid
[headline] => Install Errors
PEAR ERROR: install failed
Regrettably, I’m stumped at this point. I’m not sure if the PEAR server is down, if Mosso can’t do this, or what. There’s no ability to drop to a command line on Mosso, and try to do it by hand, so I’m going to try again in a little bit… but if anyone has any ideas, it would be greatly appreciated!
EDIT: Note that this is discussed also in another forum, and apparently not unique to Mosso. Still not solved.