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Re: Downgrading the OS

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In article <1nq2sg9.1qau9ha15fn6j3N%csampson@inetworld.net>, Charles H.
Sampson <csampson@inetworld.net> wrote:

> I have an unusual problem that requires me to have a computer running on
> 10.8.

what problem could that be?

> I bought the system disk from Apple for $20 but I'm unable to
> "downgrade". When I click on the disk's Install Mac OS X (which has the
> "No" symbol superimposed on it), I get the following messages:
> 
> "You can't use this version of the application 'Install Mac OS X' with
> this version of macOS. You have 'Install Mac OS X' 23.1.1."

you can't (easily) downgrade to an older system. only same or newer.

you will need to reformat the drive and start fresh, ideally booted
from a usb stick installer that you created.

and that's assuming that the mac itself is old enough to run 10.8. if
not, you won't be able to install 10.8 no matter what you do. 

what mac is it?

a much better solution is create a guest system in vmware or parallels.

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Thread

Downgrading the OS csampson@inetworld.net (Charles H. Sampson) - 2018-06-09 13:24 -0700
  Re: Downgrading the OS ANTant@zimage.com (Ant) - 2018-06-09 15:41 -0500
  Re: Downgrading the OS nospam <nospam@nospam.invalid> - 2018-06-09 16:47 -0400
    Re: Downgrading the OS "John Varela" <newlamps@verizon.net> - 2018-06-10 18:56 +0000
    Re: Downgrading the OS csampson@inetworld.net (Charles H. Sampson) - 2018-06-11 13:46 -0700
  Re: Downgrading the OS JF Mezei <jfmezei.spamnot@vaxination.ca> - 2018-06-09 17:28 -0400
    Re: Downgrading the OS Your Name <YourName@YourISP.com> - 2018-06-10 10:40 +1200
  Re: Downgrading the OS Király <ggrandish@gmail.com> - 2018-06-11 15:04 -0700
    Re: Downgrading the OS nospam <nospam@nospam.invalid> - 2018-06-11 18:07 -0400
      Re: Downgrading the OS Steve Carroll <frelwizzen@gmail.com> - 2018-06-12 07:48 -0700
      Re: Downgrading the OS csampson@inetworld.net (Charles H. Sampson) - 2018-06-17 05:03 -0700
        Re: Downgrading the OS nospam <nospam@nospam.invalid> - 2018-06-17 11:26 -0400
          Re: Downgrading the OS Jolly Roger <jollyroger@pobox.com> - 2018-06-17 16:07 +0000
        Re: Downgrading the OS Jolly Roger <jollyroger@pobox.com> - 2018-06-17 15:44 +0000
          Re: Downgrading the OS Jolly Roger <jollyroger@pobox.com> - 2018-06-17 16:08 +0000
        Re: Downgrading the OS Lewis <g.kreme@gmail.com.dontsendmecopies> - 2018-06-17 17:27 +0000
          Re: Downgrading the OS dempson@actrix.gen.nz (David Empson) - 2018-06-18 12:12 +1200
            Re: Downgrading the OS ANTant@zimage.com (Ant) - 2018-06-17 19:43 -0500
              Re: Downgrading the OS nospam <nospam@nospam.invalid> - 2018-06-17 20:57 -0400
              Re: Downgrading the OS Leonard Blaisdell <leoblaisdell@sbcglobal.net> - 2018-06-18 17:36 -0700
              Re: Downgrading the OS Steve Carroll <frelwizzen@gmail.com> - 2018-06-18 18:42 -0700
        Re: Downgrading the OS JF Mezei <jfmezei.spamnot@vaxination.ca> - 2018-06-17 15:11 -0400
    Re: Downgrading the OS Steve Carroll <frelwizzen@gmail.com> - 2018-06-11 22:44 -0700
    Re: Downgrading the OS Steve Carroll <frelwizzen@gmail.com> - 2018-06-12 01:51 -0700
  Re: Downgrading the OS Jolly Roger <jollyroger@pobox.com> - 2018-06-17 15:41 +0000

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