![]() ![]() Then, I went into the “System Preferences” and simply set the calendar to a date back when Yosemite was current (2015)… and wha-La!- loaded like a champ. I unhooked from internet and tried terminal again…nada. So I went into terminal to set the date to an earlier year- NOT the current one!. Note that I got a hint from various earlier posts that setting the date was integral and was what was preventing the installer from working. I knew it hadn’t… so I searched for a work around. It would not continue, said it may have been tampered with etc. So I had to install a copy of Yosemite I already had. So, trying to load the latest Yosemite on a MAC PRO that works perfectly as a second computer on my desk, but was produced in 2009, so High Sierra is not supported. Let us know in the comments if this helped to resolve these specific error messages for you, and if not, what method did work to fix the install error with OS X. It’s notable that both users encountered different error messages despite having the same resolution. This troubleshooting trick was left in our comments by DAVIDSDIEGO who found the solution on bensmann.no. Nonetheless these two error messages also display when the system date on the Mac is set incorrectly, which is obviously what we’re discussing here. Try running again” error message will appear and resolve itself with a simple reboot. Also, sometimes the “An error occurred while preparing the installation. It may have been corrupted or tampered with during downloading” error message because the actual installer was modified or damaged during a download, to be sure that is not the case, always download the OS X installer applications directly from Apple and the App Store, and never from a third party site. Once you enter the proper date and hit return, you can exit out of Terminal and begin the installation process again as originally intended, and OS X should no longer throw the dodgy sounding error messages.ĭo note that sometimes you will see the “This copy of the Install OS X Yosemite application can’t be verified. It may look like a random string of numbers but it’s actually the month 09, date 20, time 1733, and year 16, combined. ![]() For example, to set the date as “Septemat 17:33” you would use the following syntax: In simpler terms, that is: Month Date Hour Minute Year, and it’s entered as a solid line with no breaks or spaces between the numbers. The manual date format to use is a little weird, if you’re familiar with the command line you can retrieve it yourself by using date –help, which looks something like “dd]HH]MMyy]” Thus, you’d need to use the ‘date’ command again but with manual specifications. That will not work if the Mac does not have internet access, however. You now have two approaches, set the date via the internet, or set the date manually. If you notice the date is completely wrong, you can set it the current date and time using a variation of the same terminal command. Pay special attention to the year as an obvious indicator of something wrong. The entire line matters, as the date must be correct in order to install OS X, specifically the year, because if the date set is prior to the release of OS X, the error will trigger. Hit return, and if the reported date is anything other than the actual current date, then you’ve almost certainly found the cause of the problem. Pull down the “Utilities” menu option and choose “Terminal”, then type the following command into the prompt: To determine if the Terminal date trick can fix those error messages and help you to successfully install OS X, you’ll need to turn to the command line while at the “Install OS X” boot menu. If you’re on a computer without internet access, or if you encounter the problem during an alternative OS X installation method and thus can’t access System Preferences, turning to the Terminal to set the date is the next option. That method requires the Mac to have active internet access, however. To do this, go to the Apple menu > System Preferences > Date & Time, and be sure the “Set date and time automatically” option is checked: If you run into either error message while trying to update or install OS X while from an active OS X boot (say, a standard upgrade from the App Store), you can typically resolve the problem simply by setting the Date & Time on the Mac to be determined automatically. It’s possible to encounter these errors during basically any type of installation attempt in OS X El Capitan or OS X Yosemite, ranging from the standard App Store update, using Internet Recovery, to clean installs, and using a bootable installer volume on a target Mac.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |