Copy bootable usb to another usb mac

It also makes an almost exact copy of the source device.

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  3. Use Disk Utility to Clone a Mac's Drive!
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  6. Use Disk Utility to Clone a Mac's Drive;

When we say "almost exact," we don't mean to imply that useful data may get left behind, because that's not the case. What it means is that a block copy copies everything in a data block from one device to the other. The results are almost an exact copy of the original.

How to Clone USB Drive on Mac

A file copy, on the other hand, copies data file by file, and while the file data remains the same, the location of the file on the source and destination devices will likely be very different. Using a block copy is faster, but it does have some limits that affect when it can be used, the most important being that copying block by block requires that both the source and destination devices be first unmounted from your Mac.

This ensures that block data doesn't change during the copy process. But it does mean that neither the source nor the destination can be in use when you use the Restore capabilities.

If you need to clone your startup drive, you can make use of either your Mac's Recovery HD volume or any drive that has a bootable copy of OS X installed. We'll provide information about how to use the Recovery HD Volume to clone your startup drive, but first, we'll look at the steps in cloning a non-startup drive attached to your Mac. The Disk Utility app will open, displaying a single window divided into three spaces: If the Disk Utility app looks different then this description you may be using an older version of the Mac OS.

How do I copy or clone a flash drive cont… - Apple Community

You can find instructions cloning a drive using an earlier version of Disk Utility in the guide: The volume you select will be the destination drive for the Restore operation. A sheet will drop down, asking you to select from a drop-down menu the source device to use for the Restore process.

The sheet will also warn you that the volume you selected as the destination will be erased, and its data will be replaced with data from the source volume. Use the drop-down menu next to the "Restore from" text to select a source volume, and then click the Restore button.

The Restore process will begin. Choose the destination disk. Tick Sector by sector clone in Advanced options, with it, you can clone all sectors from the source disk to the destination disk.

What's the fastest way to clone a bootable USB drive?

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