I was upgrading from 11.10 to 12.04 and the process got stuck when reconfiguring/downloading dropbox. I had to break the upgrade at 87% and don't think my system will boot now. Is there any way to resume the upgrade in order to complete it?
I don't believe resuming will work. You will need to restart the configuration of all the packages.
During the Grub menu, after you start the PC, select
If the menu didn't appear, and you went into console mode you can run this command:
If if was broken - as it was in my case -, and neither the menu nor the console worked. Then in the Grub choose a "Previous Linux Version" and select any of the Linux Kernel version in
(Well to be honest I think you can "resume" the upgrade, if you somehow managed to keep track of all the packages that weren't yet configured, by running
I know this is not quite the question you asked however here is a short discussion about the dropbox problem:
In fact to update dropbox it must be stopped (killed via