How to create a bootable USB installer for macOS Big Sur


If you wish to have a fast method to set up Apple’s new OS, here is a method to do it very easily.

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Every 12 months brings with it a new unencumber of macOS. This 12 months Apple made its greatest announcement since 2005, when Steve Jobs introduced that Apple’s computing lineup would start transitioning to Intel processors and that through 2007, all units within the lineup would have made the transfer.

SEE: macOS Big Sur: A cheat sheet (free PDF) (TechRepublic)

Just a few weeks in the past, Apple made a similar announcement, this time round, on the other hand, it used to be to lay out their roadmap for the transition from Intel to Apple’s new,
ARM-based Silicon on Chip (SoC)

. The identical generation has been powering Apple cellular units, similar to iOS, iPadOS, watchOS units for a number of years now. Moreover, the announcement used to be bookended through the revelation that the newest model of macOS, dubbed Big Sur, used to be now not handiest the primary OS to reinforce the brand new ARM-based {hardware}, however used to be additionally Apple’s soar clear of the OS X roots through in spite of everything going to a newly coded macOS model 11.0.

While the primary of Apple’s new {hardware} isn’t anticipated to debut till the fourth quarter of 2020, macOS 11.Zero shall be to be had within the 3rd quarter, this means that many present customers will need to make the leap to the newest model. Those with get right of entry to to mobile device management (MDM) or Munki servers will most likely have their improve trail already found out. However, the ones with out or who require a extra hands-on way will most likely want a fast, simple, and conveyable method to deploy Big Sur on consumer units off-site.

SEE: WWDC 2020: The biggest takeaways (free PDF) (TechRepublic)

I to find a USB bootable installer to be a very good useful resource. And whilst there are a few techniques to move about developing one for macOS, for me the most simple method is the one who has the least choice of necessities and will also be carried out in a pinch on any supported instrument natively. Here are a few necessities:

  • macOS laptop (supported through Big Sur)
  • Install macOS Big (downloaded from Mac App Store or Developer’s Portal)
  • External USB Drive or Internal Drive formatted with GUID partitioning scheme (with minimal 16GB cupboard space to be had)
  • Administrative credentials

1. With the objective media and force attached, release Terminal and input the next command:

sudo /Applications/Install macOS Big --volume /Volumes/DRIVENAME --nointeraction --downloadassets 

The command wishes to run with root rights and can instructed to test admin credentials when executing the command. Type them in and press Enter to start up the method. Depending at the pace to the disks, the method would possibly take 15-30 mins to entire, however as soon as accomplished it’ll be able for use.

While the extra switches of –nointeraction and –downloadassets are not obligatory, they are going to carry out the method silently with out prompting the person additional and can obtain any updates to the installer earlier than developing the installer.

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