Re: Time Machine Backups not showing after reformatting HD on iMac then doing Yosemite Upgrade
Hi! I had a similar situation, here's my story and how I got around it. I started back a couple of months ago researching to upgrade my iMac late 2009 27" i5 to upgrade it with an SSD 3G drive 240GB and by the same means, change the internal drive that was 5 years old. So OWC's on-line Tech team were such an amazing source of information and help during this process, but not the only source! I used different blogs and also a youtube video that saved my life which helps user create a bootable USB key I recommend you look at especially if you don't have hard OS copies with you, just lookup jbtech how to create a bootable os x usb on Youtube. Also, make sure your backup has the same OS version of the the USB key, I suggest making sure your using latest version then do a full backup before proceeding with switch.
My research brought me to invest in a Guardian Maximus RAID firewire enclosure a couple of months ago, again very happy I spent the money on a 2X4TB Raid 1 Back up system. So I proceeded with the hardware change over the week-end and to my surprise when came time to use Time machine fully restore my hard drive, it always failed after 13.1%! I could never get past that number! I spent hours searching and to my grandest surprise I find out hundreds of comments on different blogs stated having issues with Time-Machine restore process. I was starting to loose faith when also Disk migration wasn't helping out because it was failing to recognize the new HDD, only the SSD drive. I told myself, thank god my old internal drive is still functional and that I had a external enclosure available. So I logged on to the on line tech team from my supplier and proceeded the following way: Used time-machine to restore all softwares to the SSD drive. For the rest I am manually copying the balance of the data over in the old drive to the new drive I installed in my iMac, the old drag and drop copy method. I just can't believe how lucky I was and how unreliable time-machine was in this situation. I can't believe it failed the restore procedure and I basically was in trouble if my old drive had crashed.....
You can also try the following steps. Go to Time-Machine and do the following .... which the solution is a massive hack, and definitely something that you’d never stumble into even after spending ages with trial and error
Hit “enter Time Machine”
Press the key combination shift-command-C
Then (very important) select a red bar to go back in time
Explanation: dull red bars represent backups you cannot access, bright red bars you can
Then from Macintosh HD navigate to desired folder you want to restore
Hope this helps you with your issue.