Comment 3 for bug 774541

Hi there,

Thank you for taking the time to report bugs and trying to make Ubuntu Server better.

According to the information you have provided, it seems that the reason why it failed to upgrade is because one of the parameters can not contain the ' '(space) character in it:

newaliases: warning: valid_hostname: invalid character 32(decimal): Front Desk

So, this means that you would have to change the parameter accordingly to not to have any space characters in it. Once you change it, you should be able to do the following to complete the installation:

sudo dpkg --configure -a

Please, let us know how it goes.

Cheers,