How to Upgrade to Mac OS X 1. Ny State Dept Of State Licensing New York. Without a DVD Drive If you have a Mac without a functioning DVD drive or a Mac. Book Air, youll need to find another way to upgrade to Snow Leopard, thankfully this is very easy, all youll need is an external firewire or USB hard drive. Youll need access to a DVD drive somewhereso that you can make a disk image of the Snow Leopard install disk with the Disk Utility tool, but once you have the disc image you wont need the DVD drive again. What you WILL need the entire time though is an external Firewire or USB drive that you dont mind formatting, so that you can make the device bootable and upgrade to Snow Leopard from it. As some readers pointed out, this step isnt required. If you do need to, you can create a DMG file of the Snow Leopard disk, this is very easy. Launch Disk UtilitySelect the Snow Leopard DVD within Disk UtilityClick the New Image button at the topName the image and put it somewhere you can find it easily DesktopClick OK and wait for the image to be created. Easy enough right Ok so heres how you create a bootable Snow Leopard installation drive out of your external firewire or USB hard disk. Launch Disk UtilitySelect the External FirewireUSB device that you want to use as the boot drive for the upgradeClick Partition from the menu optionsSelect 1 Partition, then click Options below the partition schemeSelect the top option for GUID Partition Table it MUST be GUID to be bootableClick OK to create the GUID partition this will reformat the drive, ie all data is lostNext, click the Restore tab within Disk UtilitySelect your newly made Snow Leopard 1. Install DVD image and restore this image to the GUID partition you just created ORAlternatively, you can select the Snow Leopard Install DVD and restore directly from the DVD to the GUID partitionAfter the restoration is complete, your GUID partition will now be bootable by Mac OS XReboot the Mac holding down the Option key to pull up the boot loader, select the Snow Leopard install drive you just created rather than your default Mac OS hard driveInstall Snow Leopard as usualMake OS X El Capitan Bootable USB Flash Drive, Heres How TutorialAfter months of hard work and continuous progress, OS X 1. El Capitan is finally out as a free of charge upgrade via the Mac App Store. If youre intention is to migrate seamlessly across from an existing version of OS X then you can simply visit the Mac App Store and go through the El Capitan installation process. However, if youre looking for an entirely fresh clean install of Apples latest desktop OS on your Mac, then you will need to create a bootable USB drive for El Capitan. Were going to show you exactly how to do that. Before we jump right into the process, there are a few prerequisites that are required to complete the process. Prerequisites Any computer running OS X. A USB flash drive with a minimum of 8. GB capacity. Remember that this drive will be formatted as part of the process, so if it currently has anything important stored on it then youll need to make a copy of that in a safe location. Finally, youll need approximately 1. Im not responsible for any problems you might run into. Install on a different Hard drive. Its a lot safer. This is how i did it and it worked for me. Jesus Vigo reviews the steps required in creating a bootable USB flash drive used to install a modern version of Windows on your computer. Install Mac Os X On Usb Drive' title='Install Mac Os X On Usb Drive' />How to make a OS X El Capitan 1. USB flash drive Step 1 First up, get OS X El Capitan from the Mac App Store Download OS X El Capitan 1. Final Version For Your Mac Free Right Now. When the download has finished, make sure that you quit the installer rather than actually going through the process of upgrading over the top of your existing OS X installation. Make sure that the installer that downloads the El Capitan file is located in the Applications folder under the name Install OS X El Capitan. Step 2 Next, were going to need to format the USB flash drive to get it into a state where it can accept the payload for the installation of El Capitan. Plug the USB flash drive into an available USB port and launch the Disk Utility application. Make sure that the USB flash drive is selected within the left sidebar, and then select the Erase tab from the main window interface. Hello, I tried to install macOS High Sierra on external USB hard drive on my Sony Ultrabook wherein Window 10 is already installed on SSD. While installing, once the. In this tutorial, I show you how to install, setup and run Mac OS X 10. El Capitan, Yosemite 10. VMWare Workstation 11 inside Windows PC. Heres a stepbystep guide to performing a clean install of OS X Yosemite using a bootable USB drive. Mac OS X 10. 4 Tiger is the fifth major release of Mac OS X now named macOS, Apples desktop and server operating system for Mac computers. Tiger was released to the. Step 3 In the main window ensure that the Format dropdown box is set to Mac OS Extended journaled, and the Name is set to Untitled. Click on the Erase button at the bottom of the interface. Step 4 Now, in the same window select the Partition tab. From within the Partition Layout dropdown, make sure that 1 Partition is selected. Click the Options button at the bottom of the window and ensure that GUID Partition Table is selected as the chosen partition scheme. Check the name of the partition and clarify that its set to Untitled and not Untitled 1 or anything. Click on Apply. Step 5 This is where things get a little interesting. Were going to dive into some command line foo. Launch the Terminal application. Type in the following command and hit Enter. ApplicationsInstall OS X El Capitan. ContentsResourcescreateinstallmedia volume VolumesUntitled applicationpath ApplicationsInstall OS X El Capitan. Tip Dont miss the double dashes, as shown more clearly in the screenshot below. Because of the leading sudo command, Terminal will ask you to enter your administrator password for the Mac. Type it and hit Enter on the keyboard. Step 6 Terminal and the Mac will now set about going through the process of installing the OS X El Capitan installer onto the connected USB flash drive and then turn it into a bootable drive. As mentioned above in the Prerequisites section, this could take approximately 1. Please DO NOT remove the flash drive during the process. When the process is complete, Terminal will show Done. And youre done The newly created OS X El Capitan bootable flash drive is ready to be put to work to install fresh copy of El Capitan onto your Mac. Now want to clean install El Capitan on your Mac Follow the instructions here Clean Install OS X El Capitan On Your Mac The Right Way, Heres How Guide. You can follow us on Twitter, add us to your circle on Google or like our Facebook page to keep yourself updated on all the latest from Microsoft, Google, Apple and the Web.