I've tried recreating this, using the test case you provided (thanks!), and ensuring that libgtk2-perl was not installed. However, the upgrade (which included grub-pc) did not hang for me at all. Are you sure modifying /etc/default/grub is sufficient?
I've tried recreating this, using the test case you provided (thanks!), and ensuring that libgtk2-perl was not installed. However, the upgrade (which included grub-pc) did not hang for me at all. Are you sure modifying /etc/default/grub is sufficient?