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I'm trying to install rosetta 2 via command line, using this command:

/usr/sbin/softwareupdate --install-rosetta

Source: https://derflounder.wordpress.com/2020/11/17/installing-rosetta-2-on-apple-silicon-macs/

The problem:

I'm receiving this error:

softwareupdate[981:12251] Package Authoring Error: 001-79711: Package reference com.apple.pkg.RosettaUpdateAuto is missing installKBytes attribute

Terminal screenshot: Screenshot

The question: How can I get rid of this error and install rosetta 2 properly?

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  • Comments are not for extended discussion; this conversation has been moved to chat.
    – bmike ♦
    Commented Apr 16, 2021 at 16:06

2 Answers 2

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Don't know about the error message but the command also reports Install of Rosetta 2 finished successfully. So to check whether Rosetta actually got installed

  • Install an "old" application not recompiled for M1 yet (if you don't have one, any free application from the Store which hasn't been updated since May 2020 will do)
  • Run it to see if it works.

You can then also check in Activity Monitor by enabling the "Architecture" column there. If any process shows as"Intel", Rosetta is installed

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  • got same error, appeared to install without issue.
    – sonjz
    Commented Oct 12, 2021 at 16:51
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You can go to /System/Library/CoreServices and run Rosetta 2 Updater.app manually. It installs Rosetta without error, but maybe it's doing the same in the background as like installing it from the Terminal.

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