In the following instructions, we will use a USB flash drive as an external carrier example. Give your disk the name of the operating system, e.g., Sierra, Mojave, Catalina. Whichever type of drive you choose, make sure that it has at least 12GB of free memory.īear in mind-when you download an installer, the disk will be reformatted to suit the operating system you’re trying to run. Use Terminal to create a bootable installerįor your external disk to run macOS, you can choose as a USB flash drive, as well as an SSD or HDD.In this article, you’ll find detailed instructions and answers to your questions on how to make a bootable USB on Mac. You can try out the different tools for free, so download it, and see what you think. MacKeeper can do everything from finding malware to updating your apps for you. When the scan is finished, review the results, and click Fix items safely.Select Find & Fix from the menu in MacKeeper.You can do that with MacKeeper’s Find & Fix feature, which will scan your Mac for a variety of different problems. It’s a good idea to keep your Mac optimised when you’re asking to create a bootable USB drive. It’s a handy appliance-even more so if you use a small external flash drive that you can carry in a pocket. You can also use it to reinstall the operating system on a Mac that won’t startup. Such a tool allows you to install any version of macOS on multiple Apple computers easily. Why would you want to create an external boot drive for your Mac? I really need the Mac OS 9 Disk Driver installed so I can hook the disk up to an old PowerMac and get the files transferred to the iBook.A bootable macOS (previously, OS X) install disk is a portable device containing all the necessary installation files for a selected version of macOS. What the heck is going on here? How do I get to that 'Install Mac OS 9 Disk Driver checkbox?' If Disk Utility won't do the job can I do it via UNIX in the terminal? If you're erasing a disk, select the Install Mac OS 9 Disk Driver checkbox if you plan to start up the disk in Mac OS 9, or if the disk will be connected to a computer running Mac OS 9. This is what the Disk Utility help file says: I can erase the disk and create partitions but the check box to install Mac OS 9 Drivers never shows up. It doesn't matter whether it is connected via USB or FireWire. It is hooked up to my iBook 1.33 GHz G4 running Mac OS X 10.3.5 (7P216). The disk is a Seagate ST3250823A 250Gb disk in a Kingwin KH-350UF-S USB-FireWire external case with the Oxford chipset. The option to install the drivers never appears. I can't get Apple Disk Utility 10.4.3 (v145.4) to install Mac OS 9 Drivers on my external disk.

Install mac os disk utility