Remote install mac os x lion macbook air

Note that this may take up between 10 and 60 minutes, depending on your Internet connection speeds. Do not start the installation process when your download finishes. Our goal is here to keep a soft copy of the installer and in the flash drive. Double-click InstallESD. This may take a minute or two. Plug in the flash drive into your Mac and launch the Disk Utility application.

You can do it quickly by searching via Spotlight.

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Note: This will remove everything in the flash drive. Keep a backup of the files within if you still need them, then come back to this section. Tabbing over to Storage will let you know how much disk space you have available. You can, of course, do so manually by deleting unused files and uninstalling old software to free up disk space. Depending on how tidy you are, this might take quite a bit of time.

To make things easy, use a specialized app like CleanMyMac , which will quickly free up space by detecting unused apps and large files, and offering to completely delete them, with all their hidden corresponding files, in one quick click.


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The final preparation step is to make sure you back up all your important files to cloud storage or an external drive. A proper backup app like Get Backup Pro can save you a lot of headache here. Once you have space on your computer, figure out what version of OS X you would like to install. Tab to the Purchase page of the menu and scroll down to find the line for previous operating systems.

install - Reinstall OS X Lion on Macbook Air - Ask Different

Clicking the install button of the macOS you want will begin downloading the file. If your goal is to download a version of macOS that you have not already used, or, that was not available as an update from the App Store after you bought your Mac, you may need to purchase it.

How to Clean Install Mac OS X Lion Using a USB Flash Drive

OS X Snow Leopard ships as a boxed version and requires a disk drive to install. It could be helpful to know where you sit on the timeline of macOS X updates. Below is a chronological list of all the updates beginning with the most recent update, High Sierra, released in Downloads for previous versions of OS X are linked below and include:.

Downloading a. Alternatively, you could hit up your nearest Apple Store. They will likely have image files of all the different versions of the software and help you install it right there as well. If you download the file from the App Store, the installer will start immediately. Follow the prompts and be prepared to restart your computer. A downgrade is different than an upgrade.

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When you try to downgrade macOS, the installer may not launch right away depending on which versions of macOS you are moving between. Creating a bootable USB or a bootable drive is not complicated.

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Once your drive is prepared with your bootable version of OS X, erase the unwanted version. Tab to the Erase page and name the file you want erased e. Hit Erase and quit out of Disk Utility. This will return you to the OS X Utilities selector. If you used Disk Drill for creating your bootable drive, a window will prompt your actions for using the install disk you made. Find and select your install disk with your bootable version of your preferred macOS, and click continue through to the license agreement. Once you agree, you should be prompted by the installer.

I would suggest the following: Because it might be hard to find the Lion Installer, consider anyway to upgrade to OS X Yosemite, which is a much faster and polished OS and since you are on Lion I don't see any reason to stay there. Purchase a flash drive 16GB or 32GB. After installation, remember to also put a copy of the Yosemite installer on the flash drive.

Also upgrade your macbook air to Yosemite. Now you can boot your mac through the flash drive and can run Yosemite installer anytime. You will also have access to the disk utilities in order to format your internal drive if needed. Note, that if you have enough hard-disk space in your mac, you could just split it into 2 partitions and do the above instead of using the flash drive. It will be generally faster as a procedure.

The cons are that it will reserve hard-disc space and also you wont' be able to format the full disc.

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Also, it won't help you if your hard-disk encounter bigger issues or mechanical problems and need a complete format or replace. I'm ignoring the OP's problem, but you can normally reinstall OS X from the recovery partition without needing any external drive. Home Questions Tags Users Unanswered. I tried the reinstall through the recovery mode with a wifi connection and ended up with "Could not find installation information for this machine.

Select the installer and click the Restore button. The installer should appear in the Source field, if not, drag it there.


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  4. Connect the USB and drag it into the Destination field. Click Restore. Thecafremo Thecafremo There are multiple ways he can download the installer at work, public places, a friend's house, a friendly neighbor without the limitation of having to perform the installation in that exact moment. I paid for AppleCare technical support on a per incident call and they said that I should take it to a AppleCare center and pay more to get the OS reinstalled.

    I am trying to find out more info about this, but the Apple tech support could not tell me whether the OS X image is linked to the hardware config.