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A new operating system is now available for download in the Mac App Store OS X Yosemite. Switching to it is again very simple and the whole process of installing OS X Yosemite is intuitive. It's enough download installation package from the Mac App Store and then install the new system on one of the supported Macs in a few controlled steps.

However, it may be useful to have an installation disc handy in the future, from which you can reinstall the system at any time, without having to connect to the Internet and download the file again. Such an installation disk can then be used even during a clean installation of the system. Creating an installation disc has become a bit easier in the last two years than it used to be. It is necessary to use the Terminal during the process, but only one simple code needs to be entered into it, so even a user who does not normally come into contact with the Terminal can do it.

[do action=”infobox-2″]Computers compatible with OS X Yosemite:

  • iMac (Mid 2007 and newer)
  • MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 and later)
  • MacBook Pro (13-inch, Mid-2009 and later), (15-inch, Mid/Late 2007 and later), (17-inch, Late 2007 and later)
  • MacBook Air (Late 2008 and newer)
  • Mac Mini (Early 2009 and later)
  • Mac Pro (Early 2008 and later)
  • Xserve (Early 2009)[/to]

All the user needs to create an installation disc is a USB stick with a minimum size of 8 GB. However, it must be noted that the entire original content of the keyring will be deleted as part of the installation file creation, and it is therefore necessary to set aside a medium for this purpose that you will not need for anything else in the future.

Creating an installation disk or USB stick

To successfully create an installation disc, you must first download the new OS X Yosemite. The new operating system is available in the Mac App Store free, so there can be practically no problem when downloading it. Even after installation, there is no problem downloading the installation file with OS X Yosemite at any time, however, the entire system has a relatively large volume (around 6 GB), so it is not a good idea to save it for future use. This can be done in two ways: either you copy the installation application outside the default location in the folder /Application, from which it is automatically deleted after installing the new system, or you can create an installation disk straight away. This is necessary for a clean installation of the operating system.

If you are downloading OS X Yosemite for the first time (and you are still working on an older version of the system), a window with a wizard to install the new operating system will automatically pop up after the download is complete. Turn it off for now though.

  1. Connect the selected external drive or USB stick, which can be completely formatted.
  2. Start the Terminal application (/Applications/Utilities).
  3. Enter the code below in the Terminal. The code must be entered in its entirety as one line and a name Untitled, which is contained in it, you must replace with the exact name of your external drive/USB stick. (Or name the selected unit Untitled.)
    ...
    sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/Untitled --applicationpath /Applications/Install OS X Yosemite.app --nointeraction
  4. After confirming the code with Enter, Terminal prompts you to enter the administrator password. Characters will not be displayed when typing for security reasons, but still type the password on the keyboard and confirm with Enter.
  5. After entering the password, the system will start processing the command, and messages about formatting the disk, copying the installation files, creating the installation disk and the completion of the process will pop up in the Terminal.
  6. If everything was successful, a drive with a label will appear on the desktop (or in the Finder). Install OS X Yosemite with the installation application.

Clean install of OS X Yosemite

The newly created installation drive is especially needed if you want to perform a clean installation of a new operating system for some reason. The process isn't particularly complicated, but you can't do it without an installation disc.

Before doing a clean install and formatting the drives, make sure to back up the entire drive (for example via Time Machine) so you don't lose any important data.

To perform a clean install, just follow these steps:

  1. Insert the external disk or USB stick with the OS X Yosemite installation file into the computer.
  2. Restart your Mac and hold the key during startup Option .
  3. From the offered drives, select the one on which the OS X Yosemite installation file is located.
  4. Before the actual installation, run Disk Utility (found in the top menu bar) to select an internal drive on your Mac and completely erase it. It is necessary that you format it as Mac OS Extended (Journaled). You can also choose the level of deletion security.
  5. After successfully erasing the drive, close Disk Utility and continue with the installation that will guide you.

System restore from backup

After performing a clean installation, it's up to you whether you want to completely restore your original system, pull only selected files from the backup, or start with a completely clean system.

After installing on a clean disk, OS X Yosemite will offer you an automatic recovery of the entire system from a Time Machine backup. Just connect the appropriate external drive on which the backup is located. Then you can pick up where you left off in the previous system.

However, you can skip this step and use the app later Data Transfer Wizard (Migration Wizard). You can find detailed instructions for the application <a href="https://cdn.shopify.com/s/files/1/1932/8043/files/200721_ODSTOUPENI_BEZ_UDANI_DUVODU__EN.pdf?v=1595428404" data-gt-href-en="https://en.notsofunnyany.com/">here</a>His Data transfer wizard you can manually select which files from the backup you want to transfer to the new system, for example only individual users, applications or settings.

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