Some involve using the system tools, while others depend on installing external packages. Modern, downloadable versions of OS X create a recovery partition on your drive, but it’s always a smart idea to make your own bootable installer drive too.There are many ways to create a bootable USB in Ubuntu. If OS has a bigger size then you need a USB drive with a large capacity.Back in the day when we bought OS X on discs, as long as you kept that disc, you always had a bootable installer just in case. Drive requirement is based on the OS. You can also follow the same steps in Ubuntu 16.04, 18.04, and 21.04 to make the USB drive bootable. This article will discuss how to create a USB drive bootable in Ubuntu 20.04.
Create A Bootable Usb Drive For Ubuntu Mac Is ExperiencingAnd if your Mac is experiencing problems, a bootable installer drive makes a handy emergency disk.How to make & create bootable USB Drive Here are the best free tools to create bootable USB for Windows, MacOS, Linux. If you want to erase the drive on a Mac before installing Yosemite, or start over at any time, you can use a dedicated installer drive to boot that Mac, erase its drive, and then install the OS clean and restore whatever data you need from a backup. Here are the steps to complete this task.I recommend making one for Yosemite, on an external hard drive or USB thumb drive, for many of the same reasons I recommend making a bootable Mavericks installer drive: If you want to install Yosemite on multiple Macs, using a bootable installer drive can be more convenient than downloading or copying the entire installer to each computer. It's fairly simple to use if you're familiar with Linux, and it also allows you to set persistence for when you reboot. On an Ubuntu machine, you can easily create a bootable Linux USB with a built-in app called Make Startup Disk.Plug the USB flash drive into a computer. Success Use this USB drive to install Linux. It may ask for your password. Click Flash to create your bootable USB flash drive. Click Select drive and choose your USB stick. In old days when we need to install something on our pc like software. If you plan to use that installer on other Macs, or—in this case—to create a bootable drive, be sure to copy the installer to another drive, or at least move it out of the Applications folder, before you install. As with the Mavericks installer, if you leave the Yosemite beta installer in its default location (in the main Applications folder) when you install OS X 10.10, the installer will delete itself after the installation finishes. Keep the installer from being deletedLike all recent versions of OS X, Yosemite is distributed through the Mac App Store. Find a way to run Ubuntu off an SD card, so that I could use Linux on my Macbook.As with previous versions of OS X, it’s not difficult to create a bootable installer drive from the Yosemite installer, though the processes have changed slightly since Mavericks. Nayan Seth will explain how to make a bootable SD Card or USB on a Lin. You may have to change the boot order of your computer to boot from the USB. Will maker for macConnect to your Mac a properly formatted 8GB (or larger) drive, and rename the drive Untitled. (Follow this tutorial to properly format the drive.) Your OS X user account must also have administrator privileges.Using the createinstallmedia command in Terminal Here are the required steps: That drive must also be formatted with a GUID Partition Table. The Disk Utility-via-Terminal approach is for the shell junkies out there.Whichever method you use, you need a Mac-formatted drive (a hard drive, solid-state drive, thumb drive, or USB stick) that’s big enough to hold the installer and all its data—I recommend at least an 8GB flash drive. (Note that the createinstallmedia tool doesn’t work under OS X 10.6 Snow Leopard—it requires OS X 10.7 Lion or later.)The Disk Utility method is the way to go for people who are more comfortable in the Finder (though it does require a couple Terminal commands), and it works under Snow Leopard, Lion, Mountain Lion, Mavericks, and Yosemite. Launch Terminal (in /Applications/Utilities). Select the text of this Terminal command and copy it:Sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install OS X Yosemite.app -nointeraction This means that if you moved it before installing Yosemite, you need to move it back before making your installer disk. Wait until you see the text Copy Complete. The program then tells you it’s copying the installer files, making the disk bootable, and copying boot files. The Terminal window displays the progress of the process, in a very Terminal sort of way, by displaying a textual representation of a progress bar: Erasing Disk: 0%… 10 percent…20 percent… and so on. Type your admin-level account password when prompted, and then press Return. Paste the copied command into Terminal and press Return. The procedure is a bit more involved with Yosemite than it was for Mavericks (which was itself a bit more involved than under Mountain Lion and Lion).Right-click (or Control+click) the Yosemite installer to view its contents. Here are the steps for using it to create your installer drive. Option 2: Use Disk UtilityYou’ll find Disk Utility, a handy app that ships with OS X, in /Applications/Utilities. If you like, you can rename the drive from its default name of Install OS X Yosemite, though I think it’s kind of a catchy name. That volume will appear in the Finder as OS X Install ESD open it to view its contents. Double-click InstallESD.dmg in the Finder to mount its volume. In the folder that appears, open Contents, then open Shared Support you’ll see a disk image file called InstallESD.dmg. Right-click (or Control+click) the installer, and choose Show Package Contents from the resulting contextual menu. It’s called Install OS X Yosemite.app and it should have been downloaded to your main Applications folder (/Applications). In Disk Utility, find this destination drive in the left sidebar. Connect to your Mac the properly formatted hard drive or flash drive you want to use for your bootable Yosemite installer. Drag the BaseSystem.dmg icon into the Source field on the right (if it isn’t already there). Select BaseSystem.dmg in Disk Utility’s sidebar, and then click the Restore button in the main part of the window. Launch Disk Utility (in /Applications/Utilities) and then drag BaseSystem.dmg (in the OS X Install ESD volume) into Disk Utility’s left-hand sidebar. Open the Terminal app (in /Application/Utilities), then type (or copy and paste) the following command, and then press Return:Defaults write com.apple.finder AppleShowAllFiles 1 & killall Finder(This tells the Finder to show hidden files—we’ll re-hide such files later.) ![]() If you like, you can rename the drive from OS X Base System to something more descriptive, such as Yosemite Installer.You can use Disk Utility’s Restore screen to create a bootable Yosemite installer drive. Open the Terminal app, type (or copy and paste) the following command, and then press Return:Defaults write com.apple.finder AppleShowAllFiles 0 & killall FinderYou now have a bootable Yosemite install drive. You’ll likely want to re-hide invisible files in the Finder. Copy these files to the root (top) level of your install drive (OS X Base System, not into the System or Installation folder). Also in the mounted OS X Install ESD volume, you’ll find files named BaseSystem.chunklist and BaseSystem.dmg. (You’re replacing the deleted Packages alias with this Packages folder.) The folder is about 4.6GB in size, so the copy will take a bit of time, especially if you’re copying to a slow thumb drive. Open Terminal and type (or copy and paste) the following commands, one by one, pressing return after each to run it. (The Terminal commands I provide here assume the drive is named Untitled.) Rename the drive to Untitled. Connect to your Mac a properly formatted 8GB (or larger) drive. Download the Yosemite installer from the Mac App Store and make sure it’s in your main Applications folder (/Applications)—it’s called Install OS X Yosemite.app. Enter your admin-level account password when prompted.Sudo hdiutil attach /Applications/Install OS X Yosemite.app/Contents/SharedSupport/InstallESD.dmg sudo asr restore -source /Volumes/OS X Install ESD/BaseSystem.dmg -target /Volumes/Untitled -erase -format HFS+(During this step, you’ll be prompted to confirm that you want to erase the contents of Untitled.
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