Comment 2 for bug 438266

I have a very similar issue. I double clicked the deb package, and clicked install. I entered the correct password to give it root privilege.
1. If all the dependencies are satisfied, it will fail to install the package.
     It says : "dpkg: unable to read filedescriptor flags for <package status and progress file descriptor>: Bad file descriptor"
2. If the dependencies are not satisfied, it will help you automatically install the required packages. (Here works correctly), but after installing the required packages, Gdebi still can't install this deb package.

I can install the packages by using "dpkg -i package.deb"

Karmic 9.10 (updated to the latest) 32-bit version
Kernel: Linux 2.6.31-11-generic
Gdebi version: 0.5.9