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#Catalina mac os create new folder on mac hd how to#

Unfortunately that is not possible due to a macOS limitation, Disk Utility cannot add an encrypted volume to an APFS volume group. These devices are suitable for Data-only backups, but you should acquire an SSD for making bootable backups. Keep these slower disks formatted as Mac OS Extended, Journaled. APFS does not perform well on HDD devices, and that performance is unacceptable on these slowest HDD devices due to their much slower seek performance. with a rotational speed of 5400RPM (or slower!). You should also avoid the conversion if your destination device is a slower 2.5" rotational HDD, i.e. Another example – if you're only backing up a single folder or handful of folders from your startup disk, you should configure a folder-to-folder backup instead, which won't require any conversion of the destination. CCC specifically avoids converting Time Machine backup volumes. For example, Time Machine is not currently compatible with APFS as a destination, so converting a destination volume that contains a Time Machine backup would break the Time Machine backup. However, if your destination volume is not dedicated to your CCC backup task or if you're not intending to back up the macOS System files, you should consider how the other uses of your destination might be affected by the conversion.

If your backup volume is dedicated to your CCC backup task, then converting the destination to APFS is the right choice. The conversion is non-destructive, and it's required for making a backup of the system. Typically there is no reason to decline the conversion. If you're still having trouble correcting the partition scheme, you may find this video demonstration helpful.

Set the Scheme to GUID Partition Map and the Format to APFS, then click the Erase button.

Don't click on the Partition button! That would seem like the obvious choice, but you cannot actually change the partitioning scheme in the Partition interface.

Click on the Erase button in the toolbar.

If you don't click on the parent device, you won't be able to change the partition scheme.

Choose the parent device of your destination volume in the sidebar – don't click on the backup volume itself, click on its parent device.

Choose Show all devices from Disk Utility's View menu.

Preparing a hard drive for use with Carbon Copy Clonerĭisk Utility's interface for performing this simple task is surprisingly unintuitive, so here is a summary of the process with some emphasis on the steps where people often go awry: This section of CCC's documentation walks you through the steps for configuring your backup disk: That partitioning scheme can't accommodate Apple's APFS filesystem, so before you can use your backup disk for making a bootable backup of your startup disk, you must make sure that it is partitioned with the correct partitioning scheme. Many external hard drives are shipped with a Windows-centric format and partitioning scheme. Video: Preparing your backup disk on macOS Catalina (and later) I want to back up multiple Macs or source volumes to the same hard drive

#Catalina mac os create new folder on mac hd how to#

See this section of CCC's documentation for guidance on how to configure your destination device to accommodate backups of multiple source volumes: This is particularly important when one of the sources is a Catalina or Big Sur startup disk. Ideally, each source that you back up will have a dedicated volume on the destination. If you have multiple tasks that back up to the same destination, however, then now is a good time to revisit your backup "hygiene". If your destination volume is encrypted, however, see the question later in this document for information specific to encrypted destinations. CCC will automatically make the changes required for your destination to be a bootable backup of your startup disk. If you are making a simple backup of your startup disk to a dedicated backup disk, then no, you do not have to make any changes to the destination unless CCC specifically recommends it.