Os x mavericks installer5/2/2023 ![]() ![]() So I still have all my Rhino files, I just cannot go back to previously saved versions of files. I lost all backups prior to October 17, which means I lost all “Save a Version” files since those are stored in Time Machine and not on the computer. ![]() I did not lose anything from my computer, nor did I lose my most recent backups. I probably should have just ejected my backup drive before I rebooted my computer into Yosemite from the external drive. Apple does not have an explanation for what happened, it seemingly was a freak occurrence. That is also the reason I installed Yosemite on an external drive, and did not upgrade the OS on my computer. In other words, I had a complete backup when I installed Yosemite on my external drive. I never do anything on my Mac that involves changing system settings, installing new software, etc. I’ll post my question in a separate new topic. This took 5 hours, but luckily I was back in business. To get my old computer back, I had to restore it from my Time Machine backup. Strangely, one of the options was “Install OS X Yosemite”, which would install that OS all over again. When starting the computer again with the option key held down, the old startup disk was not presented as an option. Things got weirder when I wanted to boot from my old startup disk again. I immediately turned off TM, but because it had been busy backing up the new Yosemite computer, I had lost all my backups prior to October 17, going all the way back to 2012. Yosemite had apparently apparently turned it on by default, without asking me if I wanted to use TM, as I usually the case with a new computer. To my astonishment it was on, even though I had never turned it on. So I checked in Time Machine Preferences so see if TM was off or on. I noticed that my Time Machine backup disk was loudly spinning. ![]() Again everything worked beautifully on my old computer. I installed it on the external HD and tried it. Since that computer will be sold with Yosemite on it, I felt I needed to try out that OS also to see if all my needed applications would work under it also. After I was satisfied I booted again from my old Lion startup disk, and everything was back to normal.Īfter seeing the new 5K iMac at the local Apple store I decided that instead of upgrading my old iMac with a new OS I might want to buy that computer. First I installed Mavericks on a spare external HD from which I then booted. Mavericks as well as Yosemite work perfectly fine on my 7 year old warhorse. The bad news leads to a question for the forum. ![]()
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