Just experienced this bug when updating a Ubuntu 10.04.3 LTS server to grub-pc (1.98-1ubuntu13). Before finding myself in the endless loop when answering 'No' at question 'Continue without installing GRUB?' I was prompted by another screen asking me what to do regarding the modified /etc/default/grub file, where I have chosen to install the maintainer's version and then I reapplied my changes (and ran update-grub).
Anyway, answering 'Yes' to get out of the otherwise endless 'Continue without installing GRUB?' loop, did not seem to have any adverse effect and the system booted properly. Right after that I updated another server, which I thought to be pretty similar. Surprisingly I was not prompted about what to do with the changed /etc/default/grub file and was also not prompted with the 'Continue without installing GRUB?' question. I can only speculate as to why I was not prompted: I already had 'GRUB_CMDLINE_LINUX_DEFAULT="noquiet nosplash"' and no surrounding comments like on the other server ... just guessing here. This bug has not been fixed. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/580408 Title: Option 'No' at question 'Continue without installing GRUB?' does nothing. Forced to answer 'Yes'. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/580408/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs