[Hardy] Update Manager hangs when it cant resolve host name

[Richard Hurt]

Binary package hint: update-manager

Summary: As discovered in bug #188957 if Update Manager cannot resolve its hostname properly it hangs forever without any notice or warning to the user.

1) Description: Ubuntu 8.04
     Release: 8.04

2) update-manager:
  Installed: 1:0.87.26
  Candidate: 1:0.87.26
  Version table:
 *** 1:0.87.26 0
        500 http://us.archive.ubuntu.com hardy-proposed/main Packages
        100 /var/lib/dpkg/status
     1:0.87.24 0
        500 http://us.archive.ubuntu.com hardy/main Packages

3) After the Update icon appeared in the notification tray I clicked on it and the Update Manager window appeared. I then clicked on the "Install Updates" button and I expected to be greeted with a password dialog box.

4) The Update Manager window became non-responsive and no password dialog box appeared. This worked fine in Gutsy (although I'm not sure my /etc/hosts file was configured the same way)