<div>
Hi Strung,<br />
<br />
yes sir, that's it: this did the trick:<br />
<br />
Set the Mac System Date Manually by Terminal Command<br />
Another approach is to set the date manually from the command line by using the “date” command string, where date is in the [mm][dd]HH]MM[yy] format, which is Month Date Hour Minute Year without any separation. This looks something like:<br />
<br />
date 0712122318<br />
<br />
For that example, it would set the date as “July 12 2018 at 12:23″.<br />
<br />
You can learn more about setting the date with date –help, which also specifies that you can even set the seconds if you want to.<br />
<br />
The ‘date’ trick is what you’d want to use if the Mac in question does not have internet access for one reason or another.
</div>


Hi Strung,

yes sir, that's it: this did the trick:

Set the Mac System Date Manually by Terminal Command
Another approach is to set the date manually from the command line by using the “date” command string, where date is in the [mm][dd]HH]MM[yy] format, which is Month Date Hour Minute Year without any separation. This looks something like:

date 0712122318

For that example, it would set the date as “July 12 2018 at 12:23″.

You can learn more about setting the date with date –help, which also specifies that you can even set the seconds if you want to.

The ‘date’ trick is what you’d want to use if the Mac in question does not have internet access for one reason or another.

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<div class="content wysiwyg-content">
Hello,<br />
<br />
I cannot reinstall OS X Yosemite : an error has occured while preparing installation, run setup again<br />
<br />
OS X Yosemite 10.10<br />
<br />
I have checked the disk for bad sectors. The OS does not start anymore, I standard get the screen with options:<br />
<br />
- Restore from time machine<br />
- Install OS X again (see above result)<br />
- Search help online<br />
- Disk tool<br />
<br />
Is there a way to clean the whole disk and download OS X to fix a bootable CD / DVD?
</div>
</div>


Hello,

I cannot reinstall OS X Yosemite : an error has occured while preparing installation, run setup again

OS X Yosemite 10.10

I have checked the disk for bad sectors. The OS does not start anymore, I standard get the screen with options:

- Restore from time machine
- Install OS X again (see above result)
- Search help online
- Disk tool

Is there a way to clean the whole disk and download OS X to fix a bootable CD / DVD?

I cannot reinstall OS X Yosemite : an error has occured while preparing installation, run setup again

Apple's early computers ran on a variety of operating systems, including a Pascal version and one based on CP/M, before releasing its ProDOS with the advent of its 16-bit computer. With the release of the Lisa, which had its own OS, Apple and computing entered the graphical age; it was followed by the Macintosh, which offered a series of "System" operating systems. Other Mac operating systems included PowerPC until Apple acquired NeXT and folded it into the Mac OS. Current operating systems for Apple devices are Mac OS-X and iOS.

Apple OS

All of Apple's hardware is produced solely by Apple Inc., who determines internal systems, designs, and prices. Apple buys certain components wholesale from third-party manufacturers. The current Mac product family uses Intel x86-64 processors. All Mac models ship with at least 1 GB RAM as standard. Current Mac computers use ATI Radeon or nVidia GeForce graphics cards and include a dual-function DVD and CD burner, called the SuperDrive. Current Apple hardware includes the iPad, iPhone, iMac, Mac Pro, Macbook, iPod and Apple TV. Discontinued hardware includes the Apple I, Apple II, and the Apple III, the Lisa, the Newton, the Quadra, Performa, Centris, Macintosh II and LC series, the Power Macintosh, iBooks and the MacBook.

Apple Hardware

Programs written for the Apple operating systems are distinguished from software created for other operating systems in that it must be approved by Apple for use on its devices, whether it is from Apple (Final Cut, iWork, Keynote, Logic Pro and GarageBand are popular titles), or is a third party application from Parallels, Nuance, Microsoft and Amazon, among many others.