#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 INSTALL#
#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 MANUAL#
#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 FULL#

#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 INSTALL#

macOS 11.2 onwards should be reasonably safe to install and use, though.

I haven’t tried any of this with macOS 11.0.1 or 11.1, which at the time showed destructive tendencies such as kernel panics when trying to install them under later releases of macOS.

#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 FULL#

Don’t do this without good reason, though: Full Security is there to protect your Mac. If you experience problems updating an existing external disk, try changing its LocalPolicy from Full Security to Reduced Security using Startup Security Utility in recoveryOS. If that doesn’t help, and you have a USB-A port available, use a USB-C to USB-A cable instead, which appears to be the most reliable. If your external disk connects by USB-C rather than Thunderbolt and you experience problems, try connecting it using a USB-C data cable rather than a certified Thunderbolt cable. With appropriate IDs, UUIDs and hash values. User Authorized Kext List hash (auxp): absentĪuxiliary Kernel Cache Image4 hash (auxi): absentĬustomKC or fuOS Image4 hash (coih): absent Signed System Volume enabled (sip1): absentīoot Args filtering enabled (sip3): absent

#BEST EXTERNAL HARD DRIVE FOR MAC MINI 2015 MANUAL#

Manual MDM enrollment disabled (smb3): absentĭevice Enrollment Program MDM disabled (smb4): absent This computer has several macOS installations:Ī normal boot volume group set to Full Security should then read After a long pause, once that has been accepted as successful, select the Restart button.Ĭheck LocalPolicy for your bootable systems using sudo bputil -d, which should then list available macOS installations by the UUID of their boot volume group: Changing back to the internal SSD when booted from an external disk usually requires a visit to recoveryOS, where you need to authenticate in Recovery Assistant. Once started up using the external system, you’ll be prompted to authenticate to access the Mac’s encrypted internal SSD.Ĭhanging between external boot disks is normally simple and direct using the Startup Disk pane. There may be quite a long pause before your Mac restarts from the chosen boot disk. You may also be asked to authenticate up to three times in rapid succession. When using those, the first time that you choose a startup disk to boot from you’re likely to be asked to assign it an authorised user. You can then switch between available boot systems using either recoveryOS or the Startup Disk pane.

Once installed, the Mac will start up in the newly installed macOS for you to configure it in the normal way.

Towards the end of the installation process, the installer may claim there’s “about a minute remaining” for many minutes.

To make a copy of an existing boot volume group, use a cloning tool such as Carbon Copy Cloner 6 in ‘legacy’ mode.

To install a fresh copy of any version of Big Sur since 11.2, run its full Installer app and select that external disk as the destination.

At this stage you can divide it into containers for multiple versions of macOS if you wish. If it has been previously formatted using an older version of macOS, I recommend re-formatting it with 11.4 if possible.

Connect the disk to an available port on your M1 Mac, which could (subject to its compatibility) include a dock or hub.

The procedure for doing this is exactly as you would expect: If you have an M1 Mac, you should now be able to connect supported storage, such as an SSD, install on it any version of Big Sur from 11.2 onwards, select that in the Startup Disk pane, and boot your Mac from that external disk. I’m delighted to report that five months after I wrote that M1 Macs had problems starting up from external disks, Apple has finally fixed Big Sur 11.4 so that they now work fully.

Best external hard drive for mac mini 2015