Are displayed solutions / suggestions for action to fix a breakdown "upgrade library" for the mail after update El Capitan 10.11.2 accurate and useful?

After five days of reading and discussion of the best way to go beyond the grip that appeared during the upgrade of El Capitan 10.10.1 to 10.10.2,"limited that I have no evidence that the steps provided and online by Apple engineers are the real solution.

System and the details of the hardware:

Start of OS: El Capitan 10.11.1

Downloaded from Apple and installed update: El Capitan 10.11.2

Computer: Power Book Pro, early 2011; 15-inch display

Memory: 8 GB

The window "Upgrade library" appeared immediately after the installation of the new operating system (. 2) and to try to use the Mail. The progress bar seems to stall and all messaging functions becomes unavailable. Precious data backed up 10 days before were not available on the computer. Apple consultants advised against the use of Time Machine to reinstall a backup Time Machine 10 - day old.

Councillors, local and by phone from Apple support, recommended repeatedly running time-consuming terminal and orders of OS that would be to check and fix permissions.

The activity of "Upgrade library" report Mail appeared repeatedly stalled as it was blocked from the outset.

Finally, despite the appearance of an interim report to a standstill, I authorized the computer to continue working - even if the same apparent have absolutely no interim report - again - saw on the screen. I left the computer in precisely this configuration for five hours. The progress report on screen disappeared. I restarted the computer and Mail worked now, my data have been recovered.

There is no evidence of this challenging experience that change the permissions of the home and the user had no impact. It is conceivable that had I was sick from the start, has allowed the computer to work (while the window of progress reported no progress) for five consecutive hours, the conversion of my mail e-mail data V 2 Mail V 3 (what was going on behind the scenes) could have taken place with zero assistance of a technician or the forums.

Conclusion: I appreciate the hand holding, (perhaps useless) preparation of 'clean' permissions, expertise, training of experienced Apple staff who guided me through the steps of permissions, but there is no evidence of my experience that the stall, I knew was a permissions problem. It is quite possible, based on what I've seen, that just after leaving the computer running his own for five hours, or even overnight, perhaps gave the same result.

Apple experts suggest that you reset the permissions. I suggest cancelling the computer for an evening, ensuring that energy preferences are set to allow the computer to work constantly without interruption, could give the same result. If the reset of the House / permissions for the user of the BONE and the Terminal are proven steps until the computer crunching to a conclusion, which is not obvious in my experience. It is possible from what I saw just the computer to perform its functions - despite the progress apparently stuck screen which does not indicate that progress - could be a simpler solution.

If the Apple experts or users know better, is a necessary first step to reset the permissions, I'd be interested to know that.

PS sorry my fault for typing in the opening graph: it should read 'when upgrading El Capitan 10.11.1 in 10.11.2' (No 10.10.1 to 10.10.2)

Tags: Mac OS & System Software

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