In this article, you will learn how to speed up your older iMac by booting to an external solid state drive. For this example, you will discover how you can boot to Mac OS Mojave using a Samsung T5 SSD.
Before we get into how to do it, let's cover a few reasons why you might want to consider booting to an external SSD with Mac OS Mojave installed. This may surprise you, but even in 2019, some iMacs come with a 5,400 RPM spinning hard drive installed.
When I'm ready to upgrade my Mac next, whether to an iMac with Retina 5K or a next-generation mini, I've got a portable solution: I can buy a Mac with a cheaper hard drive or Fusion drive,. All of your apps are fully executable directly off of your external drive. As long as it stays plugged into your Mac, you still have easy access to everything. The difference now is that your hard drive is clean, allowing the disc to read and write less,.
To see the size of a specific file or folder, click it once and then press Command-I. To see storage information about your Mac, click the Apple menu in the top-left of your screen. Choose About This Mac and click the Storage tab. For Time Machine backups, it's good to use a drive that has at least twice the storage capacity of your Mac. Booting from a solid state drive like the Samsung T5 should give you a boost in performance, especially if you are running an older iMac with a 5,400 RPM hard drive. On top of booting from an.
Hard drives that run at 5,400 RPM or 7,200 RPM are noticeably slower than modern solid state drives. A solid state drive is also slightly faster than Apple's Fusion drives, which are a combination of flash storage and a traditional spinning hard drive.
If you don't upgrade to an SSD when you order your iMac, the only way to upgrade to a solid state drive afterward is to remove the iMac screen. Removing the iMac display screen is the only way to gain access to the inner components of the computer. A more cost effective and less intrusive method is to use an external solid state drive instead, like the Samsung T5.
Booting from a solid state drive like the Samsung T5 should give you a boost in performance, especially if you are running an older iMac with a 5,400 RPM hard drive. On top of booting from an external solid state drive, it is also a good idea to store your media files on another solid state drive separate from your operating system.
Having two solid state drives will speed up your photo and video editing workflow and video rendering times, and as of 2019, the prices on solid state drives have come down considerably. For a step-by-step tutorial on how to set up an external boot drive with Mac OS Mojave, check out the video tutorial in this article.
If you are running a similar setup using solid state drives, let me know in the comment section below.
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by Jenefey AaronUpdated on 2020-01-10 / Update for OS X
You may need to boot up your Mac using an external drive or boot volume once in a while, rather than using a start up disk. Booting with an external disk has a lot of significance. Maybe you want to troubleshoot some problems, repair the disk, do partitions, format the entire disk, update, and install OS X etc. All these are executed perfectly when you use an external boot volume to boot up your Mac. In this article, we are here with the detailed step by step guide on how to boot Mac from external hard drive easily. So, let's get started…
Part 1: How to Boot Mac from USB Drive/CD/DVD
Actually, it is possible to boot Mac from external drive or a hard drive, but there are a few specific requirements needed for your Mac to become eligible for that process.
- First, you have to have an Intel-Based Mac.
- Second, the CD or DVD you are using to boot must contain Apple's Super Drive or if you are using a USB drive then it should be formatted with GUID Partition, and you are also required to install OS X installer. Apple is against booting Mac from an external storage device, because you may install an older version of OS X than the one you were using.
Boot from CD or DVD:
If you want to boot your MacBook/Air/Pro/iMac from an optical media like CD or DVD you need to follow the steps below:
1. Open your Mac or restart the device if you were already using it.
2. When the startup music is playing press and hold the 'C' key from the keyboard.
3. This will start the OS X installer from the CD/DVD on your Mac.
So, it is not too complicated to Mac boot from CD/DVD. You can easily burn a bootable image of OS X on a DVD by using Disk Utility.
Boot from External USB:
Using your USB drive to boot Mac is not as simple as you think. You need to prepare your USB drive beforehand for this specific purpose. You have to format the USB drive and insert the proper Operating System, which is OS X.
1. Turn on your Mac.
2. As soon as the startup music begins you need to press and keep holding the 'Option' key.
3. After that release that key, the Startup manager will be launched.
4. Safari vs chrome 2019. Startup Manager will begin scanning your device and you will be provided with a list of devices that are connected to your Mac.
5. Now, select the drive you want to use with your mouse.
6. Finally, press 'Return' key on the selected option to boot Mac.
This way you can boot your Mac with an external USB drive, but the most critical part is to prepare the USB drive. If you have multiple USB drives connected, then the Startup Manager shall list the drives with the bootable OS. So, this is how to boot Mac from USB drive.
Mac Hard Drives
Part 2: Common Problems and Fixes When Boot Mac from External Drive
You may face several issues during MacBook Pro Boot from USB or any external drive. So, a few FAQs are mentioned below which may help you when you are facing any difficulties.
- 1. Have you tried connecting to a different USB port?
- 2. Have you formatted the USB drive with GUID partition?
- 3. Is your Mac shutting down after connecting the disk?
- 4. Is your Disk needs repair?
- 5. Have you connected the USB drive properly?
If you are unable to startup the installer after connecting the USB drive to your Mac, then first you should try connecting it to a different USB port. It may fix the problem.
If you are having problems with your USB storage device then you need to make sure that if you have properly formatted the drive with GUID partition. You have to do it properly otherwise the Intel-Based Mac won't start.
Actually, the MacBook contains a preventive measure and because of that computer shuts down automatically when a damaged USB drive is connected or if the USB port itself is damaged.
If your Mac fails to boot from an external drive even though you have properly installed the OS X installer, then maybe your disk is damaged. You should open Disk Utility and ask permission to repair disk.
There are two types of Apple keyboards, Wired and Wireless. There are also some keyboards with inbuilt USB ports but they may not have enough power to run the drive.
External Hard Drive For Apple
So, this is how to startup Mac from external drive. Follow the frequently asked questions to clear any doubts that you have while booting from external hard drive Mac.
In case, you want to recover any lost or deleted Mac files after a boot, we highly recommend you to go for Tenorshare Any Data Recovery for Mac. It is a utility data recovery tool capable of recovering any type of data from Mac with ease. Go for it!
Can You Run Imac From External Hard Drive
- Recover data deleted, formatted or lost on Mac;
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