When a package is defined with ACL items that specify "only sub nodes" such packages cannot be installed. This is possibly related to MGNLPCK-41 which I had previously believed to affect the display of the package in the packageOpen dialog but further experimentation reveals that the packages are not merely misdescribed but cannot be installed.

I have a package that has an ACL line that reads Include | only sub nodes | (website/)secure-operations

When I attempt produce a backup of this package and attempt to install it in a difference instance of Magnolia the following error messages appear in the log:

2011-04-18 12:47:32,093 ERROR mgnl.magnolia.cms.pack.model.jcr.JcrRepositoryUtil : failed to resolve path 
secure-operations/* relative to node /: 'secure-operations/*' is not a valid path. '*' not a valid name 
character. 

This error also occurs when the packageOpen dialog displays the package.

Also, the packageOpen dialog for the uploaded package differs from the packageOpen dialog for the package from which the backup was made in that the uploaded package shows a "/*" after the line in the package. ie:

Package	      Include	this and sub nodes	/imaging/ncmmis-standard/*
              Include	this and sub nodes	/website/ncmmis-standard/*
              Include	this and sub nodes	/website/secure-operations/*

One final note: It would be nice if there was some indication when a package fails to install because of an error. Currently, the only way to know that an error has occurred is to notice that the installation went really fast, or to dig through the magnolia-error.log looking for package-installer-ish error messages.