Hello,
Similarly to alikatnz my macbook air updated perfectly. It was only the iMac I had issues with.
However, using the Macbook air I have managed to overcome the reboot issue on the following items:
- Actions: Markup
- Today: Calendar, Reminders
To do this, I simply replaced the preview, reminders and calendar applications by copying the contents of the application contents folder from the macbook air to the iMac. I accessed the contents folders through the applications folder by right on each application and selecting 'show contents'.
If you don't have a second mac, you could extract the required files from the original Yosemite update package.
However, I still haven't managed to cure the sharing issue. I assume that I can copy files across from the macbook air, but don't yet know which ones. I tried replacing the notifications application found in the core resources folder, but had no success.
Additionally, something I haven't seen in this post yet, my Macbook air has a world clock in the notification centre. I haven't managed to get this running on the iMac yet. I don't know what application drives the clock. Once I figure this out, I will just copy the contents files across like in the case of calendar, preview and reminders.
Any suggestions on what application manages the share link?, or the clock?