setrinsider.blogg.se - Carbon copy cloner for mac clone boot hard drive

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To back up to an existing disk image, select "Choose disk image." from the Destination selector and locate your disk image. If you want a read-only disk image for archival purposes, set the image format to one of the read-only formats.

If you plan to back up to this disk image again in the future, set the image format to one of the read/write formats.

Provide a name and choose a location to save your disk image.

Choose "New disk image." from the Destination selector.

Choose your source volume from the Source selector.

Disk images also greatly improve the performance of backing up to network attached storage (NAS) devices, such as the Airport Extreme Base Station and Time Capsule. Carbon Copy Cloner leverages disk images to provide you the flexibility of storing several complete backups on a single shared external hard drive. When you want to access the contents of that filesystem, you double-click on the disk image to mount the disk image as if it were an external drive attached to the machine.

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We recommend that you only use a disk image if you are backing up to a network volume.Ī disk image is a single file residing on your hard drive that contains the entire contents of another hard drive (except for the free space). To create a bootable backup, you must back up to a hard drive that is attached directly to your Mac. This Mac 911 article is in response to a question submitted by a Macworld reader.Disk images are not bootable backups.

But when the migration was complete and my new M1 Mac rebooted, I was dropped right back into the moment my Intel Mac had died-practically down to the minute. The 800GB of files I had took a few hours to drop into place. The migration can take a long time, as you’ll have experienced if you’ve gone through it before. You can now select your Time Machine backup from an attached disk or over a local network, or choose the clone you made before erasing the SSD.When you reach the Migration Assistant screen, select “From a Mac, Time Machine backup, or Startup disk.” Click Continue. When the installation is complete, your M1 Mac restarts and begins the final set-up stages.Follow the prompts to select the external drive and complete the installation on it of macOS. Click Reinstall macOS Big Sur (or a later macOS).Quit Disk Utility, which will return you to macOS Recovery.Warning: At this point, all data on the external drive will be gone forever. Click Erase again to confirm the erasure. Name the drive and make sure Format is set to APFS and Scheme to GUID Partition Map. (Choose View > Show Sidebar if it doesn’t appear.) Select the main drive, not any volumes beneath it. Select your external drive under the list of External drives in the sidebar.When the macOS Recovery dialog appears, choose Utilities > Disk Utility.When you see “Loading startup options,” release the button and wait for the Options icon to appear.

Hold down the power button for around 10 seconds. After logging into the macOS on the M1, shift the M1 Mac into recoveryOS: Shut down the M1 Mac (  > Shut Down).You need an account set up to complete the next step. Complete any necessary basic setup for your new M1 Mac so that you can run macOS.If you choose the path to make a clone, I prefer Carbon Copy Cloner to make an identical copy, but Disk Utility will do the trick, too. Apple keeps improving its migration tools, but macOS clearly likes its own backup format best. In my testing, the Time Machine path seemed to work better than relying on a disk clone of an Intel startup volume-at least a couple of months ago. I highly recommend using a Time Machine backup for this external-drive system switchover. If you’re already using Time Machine, you should still make an additional copy because Time Machine is fragile and sometimes unreliable.

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But before you start down either, make sure you have a full clone of your Intel Mac’s Data volume.

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When you clone Big Sur (or the upcoming Monterey) to migrate it in this process, you only need to copy the Data volume, as the system volume has to be created as part of the macOS installation or upgrade process. Instead of a single startup volume that has all the system and data files, Apple broke macOS into two pieces for greater security. This operation is simplified by the system/Data volume split in macOS 10.15 Catalina and later.