- Boot imac operating system how to#
- Boot imac operating system install#
- Boot imac operating system upgrade#
- Boot imac operating system password#
Boot imac operating system install#
To get working, I created a high Sierra USB install disk and then created a fresh copy of Sierra on an external SSD that was attached to my Macbook Pro Late 2013 machine. I think I assumed that as on a windows MOBO the signal would be output to the external monitor as soon as the laptop was turned on - like the windows BIOS info etc. Seems the boot process needs to be quite far along before it will accept the Command F1 to send it to the external monitor - as mentioned, I didn't have a working boot disk so I guess it never reached that stage - plus the fact that I couldn't see the laptop screen to see what was happening. So for those with a similar issue here are some observations (& assumptions) now that I have it sending the signal to an external monitor:ġ. I have a Macbook Pro retina Late 2013 - if I install Macos (Sierra) to an external hard drive of that machine and transfer the drive into the 2010 - would that work or will I just get lots of Kernel Panics? Not sure what to do next to get the signal out the machine when first turning on. disconnected the video ribon cable inside the machine hoping it would recognize no display and automatically send it to the external port. Plugged in external monitor and USB keyboard, powered on and closed the lid then tapped the USB keyboard. I would like to do the same (or even fix the LCD at some point) unfortunately, I cant find a way to send the video signal to my external monitor at boot so I can install macOS from a boot drive onto the new SSD I have.ġ. The system has had its hard drive removed by previous owner who was using it with an external monitor. Unfortunately the display as graphical issues and is just alternating black and white vertical bands at all times. Updated December 2019: Everything is up to date through macOS Catalina.Trying to fix a Macbook Pro 15" mid 2010. If you have any more questions about reinstalling macOS on your Mac, let us know in the comments.
Boot imac operating system how to#
How to set up and customize your Mac from scratch Questions? If you're starting from scratch, you'll need to set up your Mac from scratch. Your Mac will now go through the normal macOS installation process, eventually restarting.
Boot imac operating system password#
Enter your Apple ID and password if you're asked to, though you might not be.Click on the drive on which you wish to install macOS.How to reinstall macOS while in Recovery mode If you're running macOS High Sierra or later on a Mac with an SSD, your choices will be some form of APFS. Click on the format you want to use for your drive.Click on your startup disk in the Disk Utility sidebar.If you want the content on your Mac to stay intact, skip to the next section.
![boot imac operating system boot imac operating system](https://9to5mac.com/wp-content/uploads/sites/6/2019/06/macOS-Catalina-USB-Boot-Drive-Installer-10.15.jpg)
If you need to start completely fresh, then you'll want to erase your startup disk using Disk Utility. How to erase your startup disk in macOS Recovery mode First Aid will run, checking the health of your Mac's drive. It should be the drive at the top of the sidebar if there are multiple drives.
![boot imac operating system boot imac operating system](https://i.ytimg.com/vi/dE4EluErteA/maxresdefault.jpg)
Click Disk Utility when in macOS Recovery.
![boot imac operating system boot imac operating system](https://images.macrumors.com/t/ZdcrwbJ27hxwB67kpavwQTWfuKM=/1600x/article-new/2020/06/apple-silicon-mac-startup-recovery-screen.jpg)
You'll need to use Disk Utility to do that. The first thing you'll want to do is make sure your Mac's startup disk is healthy. How to check your startup disk with Disk Utility in macOS Recovery mode Press Shift - Option - Command - R to install the version of macOS that came with your Mac, or the version closest to it that's still available.
Boot imac operating system upgrade#
Press Options - Command - R to upgrade to the latest version of macOS that's compatible with your Mac.Press Command - R to install the latest version of macOS that was installed on your Mac without installing a later version.