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bill99

macrumors regular
Original poster
Aug 16, 2019
102
6
Hello Forum

Made a bootable offline Catalina Installer (downloaded from: https://apps.apple.com/au/app/macos-catalina/id/1466841314?mt=12)
and booted my iMac 2019 by holding ALT-key into a "Boot-selection menu".

Beside "Macintosh HD", "Choose Network" there is "Install macOS Catalina" and again "Install macOS Catalina"


But now I am wondering why "Install macOS Catalina" is listed twice(2 times)...
Could it be because I did cancel the Catalina installation yesterday (before confirming the "terms of usage") ?


Question:
How can the unwanted "Install macOS Catalina" be removed from the listed possibilities in order to make
sure that USB Catalina-installer is used?


Thank's a lot!

Bill
 

DeltaMac

macrumors G5
Jul 30, 2003
13,755
4,579
Delaware
At the Option-boot screen: unplug your bootable USB installer.
If you are correct about a partial install appearing, because of a stopped macOS install, then when you unplug your external installer, one of the two should disappear!
Plug your installler back in, wait for the icon to re-appear. Boot from that choice.
(If BOTH installers disappear when you unplug your external installer, then you can assume that your external is not made correctly. In that case, choose one, and continue on with the install. Find out if it will successfully complete the install... :cool: )
 

bill99

macrumors regular
Original poster
Aug 16, 2019
102
6
At the Option-boot screen: unplug your bootable USB installer.
If you are correct about a partial install appearing, because of a stopped macOS install, then when you unplug your external installer, one of the two should disappear!
Plug your installler back in, wait for the icon to re-appear. Boot from that choice.
(If BOTH installers disappear when you unplug your external installer, then you can assume that your external is not made correctly. In that case, choose one, and continue on with the install. Find out if it will successfully complete the install... :cool: )
Thanks a lot DeltaMac for the excellent advice! Does work like it should with removing an re-inserting the external installer:)

Luckily my Catalina works fine for the moment and since having a external bootabe installer is a preventive measure for
me, I am not able/willing if the installer is really working. Is there an other appoach to test it?


Thank's a lot!

Bill
 

DeltaMac

macrumors G5
Jul 30, 2003
13,755
4,579
Delaware
You said in your first post that you canceled the Catalina installation yesterday...
That's likely why you now show 2 listings for the installer.
I am pretty sure that second listing will be removed, if you let the installer complete - it would be a kind of repair install of your system.
Boot to the external installer. Install with your internal as the destination. Let it complete this time.
You will have another one or two updates available after that install completes. If you are concerned about the OTHER apps that you have installed, or your own personal documents on the boot drive, those won't be disturbed, it's just a reload of the operating system. The drive will not be erased, unless you choose to do that with Disk Utility. (Part of the installer process will clean up OTHER, possibly unneeded, installer files (should those exist), and SHOULD get your boot drive back to normal.
---
Fear not the macOS installer. It is your friend. :cool:
 
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basslik

macrumors 6502
Feb 22, 2008
462
102
Can someone direct me to a viable link for Catalina please. Apple says the requested version is not available.
this link is no good. https://apps.apple.com/au/app/macos-catalina/id/1466841314?mt=12)

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