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How to install mac os without cd drive

Your Mac will now reinstall macOS. If you plan to sell your MacBook or pass it along to someone else, then you should quit this wizard so that the new owner can enter their own details. As long as you have an active Internet connection, you can reinstall macOS via Internet Recovery instead. Most home or office networks should be protected with one of these security standards, but if you want to double-check, then:. This site uses Akismet to reduce spam.

Step Two: Securely Wipe Your Hard Drive (Optional)

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You may also like. Analyze your memory usage, with Activity Monitor 2 months ago. Unfortunately, recent MacBook models cannot use target disk mode, so the options are more limited for these computers. Granted I just said this would take the computer out of commission, but if you have a Mac Pro or old PowerMac it may be easier to pop the thing open and replace the drive from another system or by getting a new one from a local computer store.

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If you need to send the system in for servicing, then you may wish to read on for other options. Many times these have been put in a closet somewhere since most computers come with optical drives that can burn DVDs, but if you have one, give it a shot. A more robust option than optical drives is to use an external hard drive, which can include thumb drives or even an iPod. If you connect the device to another Mac, you can use Disk Utility to create a disk image of the installation DVD, and then restore it to the external drive.

From here, you can then connect the drive to the broken Mac, start it up, and hold the options key to select the bootable installation drive.

How to Install Windows Boot Camp Without An Optical Drive

If you do not have a spare hard drive or optical drive, try inserting the DVD into a second Mac and connecting it to the broken computer with a firewire cable. Boot the second Mac and press the "T" key to get into target disk mode, from which the optical drive may become available to the broken computer via the firewire connection.

Boot the broken computer and hold the options key to see if the drive shows up.

This may or may not work, depending on the computer being used. Just like with using an external drive, you can set up a second computer to serve as one.

Installing OS X with a broken optical drive - CNET

To do this, use Disk Utility on the second computer to partition the hard drive and create a small 10GB partition for the contents of the installation DVD. From here, create a disk image of the installation DVD and restore it to the newly made partition.


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Connect the computer to the broken one with a firewire cable and reboot it while holding the "T" key to get to target disk mode. The installation partition will then show up on the broken computer when you boot it with the options key held be sure to avoid booting off the second computer's boot volume, and only select the smaller partition with the installation files on it.

This option is an alternative to using the second computer's optical drive, if the drive will not work in target disk mode.

Formatting Your USB Flash Drive

Instead of trying to access the installation media from a second computer or alternative source, try installing to the broken computer from a working one. To do this, boot up the broken computer in target disk mode holding "T" at bootup and connect it to a second Mac. From there, reboot the second Mac off the installation DVD hold the "C" key at bootup with the installation DVD in the drive and run through the installation steps.

Installing Mac OS X on Blank Hard Drive Using Internet Recovery

The drive in target disk mode should be available in the OS X installer and you can proceed with the installation.