No Disk Showing Up For Re-installing Mac Os Sierra

Jun 05, 2019 Then it will popup install mac os high sierra or mojave welcome window. Click Continue button in above window, then click Agree button in the next window. And then it will go to another window which want you to select the disk to install the mac os. But you can not select the disk because there is no disk to select.

Downloading and installing a new OS gives you the opportunity to do some major house cleaning if you so desire. If you feel like you'd like a fresh start with macOS Catalina, you can always opt to do a clean install: Just follow the steps below, even if you've already installed macOS California.

Make sure you understand the difference between a clean install and a standard install before you get started.

Mar 03, 2017 If yours is not a retina then it is an easy fix, go find a hard drive or ssd on amazon, new egg or a local tech store (frys, best buy, etc). Use a phillips 00 screw driver to open the macbook, you may need a T6 screw driver to transfer the drive screw mounts to the new drive. Put the new drive in and start the mac using command option R to boot into internet recovery and go from there.
Jan 16, 2016 Assuming you don't need any data off the drive, try opening Disk Utility form the recovery screen and go to the erase tab then format Macintosh HD to Mac OS Extended (Journaled). Then quit Disk Util and try the install. If that won't work, run the command below in Terminal and tell me what it says.

Note: If you are reading this article on the Mac you want to perform the clean install with, switch to another device or print this page before continuing so you can read along as you go.

Step 1: Back up your Mac

This process will erase whichever OS you're currently using from your hard drive entirely. That means any files, programs, or documents you have will be deleted. To save your files, put them on an external hard drive or a cloud-based program like Dropbox, OneDrive, or iCloud. If you don't save these important files off your computer, you will lose them.

Step 2: Create a bootable drive of macOS Catalina

Before you erase your current operating system, download macOS Catalina from the Mac App Store. You'll need a copy of macOS Catalina to perform a clean install later on. If you don't create a bootable drive for macOS Catalina, you may have to install an older Mac operating system first and then upgrade to macOS Catalina afterward.

Step 3: Erase your hard drive

Connect your Mac to the internet via Wi-Fi or Ethernet
Click on the Apple icon.
Select Restart from the drop-down menu.
Hold down Command-R when you hear the startup chime (or the screen turns black on newer Macs) and keep holding the keys until your computer reboots.
Click on Disk Utility in the OS X Utilities selector.
Click Continue.
Select your Startup Disk.
Click on the Erase tab at the top of the window.
Enter a name for the file to be destroyed (Like macOS Mojave or something).
If your Mac is using HFS+, select Mac OS Extended (Journaled) from the format list. If your Mac is using APFS, select APFS from the format list.
If Scheme is available, select GUID Partition Map.
Click Erase.

Step 4: Reinstall a new copy of macOS Catalina

Click on Reinstall a new copy of macOS.
Click Continue.
Click Continue again when the installer window appears.
Agree to the software terms and conditions.
Select your hard drive.
Click Install.
Complete the installation process.

Questions?

Any questions about performing a clean install? Let us know below in the comments.

Updated September 2019: Updated for macOS Catalina's public release.

macOS Catalina

No Disk Showing Up For Re-installing Mac Os Sierra Compatibility

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No Disk Showing When Installing Mac Os X

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Numerous other enhancements and various new features are also there to improve the usability of Mac OS X Lion. Download os x lion for mac. Moreover, this OS also improves the Wi-Fi reliability for iMac.