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Posted on 04-08-2020 09:44 AM
Only works under Catalina. Why is Apple making it so difficult to automate OS replacement/updates?
Solved! Go to Solution.
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Posted on 08-19-2021 04:23 AM
Hello everyone
I habe tested the command "usr/sbin/softwareupdate --fetch-full-installer" on different macs. Mojave, Catalina and Bigsur. On some Mac it work but on the other not. We just cant rely on this command
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Posted on 04-08-2020 10:13 AM
Hi @adminNWA ,
The fetch full installer command was introduced on macOS Catalina. So, if you were to run that command on macOS Mojave and older, you'd get an error. As of now, its only benefit is downloading Catalina on Macs that already have Catalina, but it will certainly be helpful in the future.
If you're looking for a method of deploying Catalina, HCS has a great workflow.
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Posted on 04-08-2020 02:04 PM
You can request legacy installers going back to 10.13/High Sierra. It's actually pretty handy.
--fetch-full-installer Install the latest macOS Installer
--full-installer-version The version of macOS to install. Ex: --full-installer-version 10.15
Older installers should still be available in the MAS for you past that.
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Posted on 07-02-2020 07:41 AM
Anybody else getting
SUPreferenceManager: Failed to set object of class: __NSCFConstantString for key: LastRecommendedMajorOSBundleIdentifier with error: Error Domain=SUPreferenceManagerErrorDomain Code=1 "(null)"
Install failed with error: Update not found
when running softwareupdate --fetch-full-installer
with or without --full-installer-version
?
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Posted on 07-02-2020 03:06 PM
this feature is buggy go file feedback tickets with Apple please
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Posted on 11-20-2020 01:05 PM
still seems to be a bug
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Posted on 11-20-2020 02:48 PM
Seems to work fine on Catalina, but on Big Sur to download the installer I'm getting:
Install failed with error: Update not found
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Posted on 11-23-2020 12:17 AM
Seems to work fine on Catalina, but on Big Sur to download the installer I'm getting: Install failed with error: Update not found
Yup. Getting this same thing.
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Posted on 11-23-2020 05:05 AM
I've actually never been able to get this to work on Catalina reliably let alone Big Sur. It's never worked on Big Sur. Hopefully they'll fix it.
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Posted on 12-02-2020 01:44 PM
This never works just use the script from the mac admins scripts repo here. I just use this now and it works way better than the Apple tools
fetch full installer has never really worked, just like the rest of software update
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Posted on 12-03-2020 07:03 AM
Confirmed by Apple, it's bugged in Catalina 10.15.7 & Big Sur 11.0.1
They are working on it but no ETA for now.
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Posted on 06-21-2021 09:37 AM
@bpstuder Did you have any update from apple about the fix?
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Posted on 06-22-2021 06:59 AM
The following worked for me yesterday. Though I am running an up-to-date version of Big Sur on the machine that downloaded it.
sudo /usr/sbin/softwareupdate --fetch-full-installer --full-installer-version 11.4
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Posted on 07-09-2021 02:03 AM
@balakumaran the only fix is "update to another version and then you're good to go", which is definitely not a solution in some cases. So I managed to use links found here, use a script to curl them and install them. If you need, I can add the script here.
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Posted on 07-09-2021 06:34 AM
@bpstuder please share the script please :)
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07-12-2021 03:11 AM - edited 07-22-2021 01:36 AM
Script can be found here. Still need some improvements, but it's a start 🙂
Then I have a policy to push it :
Once it's pushed on your computers, you can use this script to start the update.
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Posted on 07-21-2021 09:13 PM
Sorry @bpstuder, it seems cannot access to your script link, can you share that again? thank you
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Posted on 07-22-2021 01:36 AM
Oops sorry, there was a typo in the link, it's fixed
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Posted on 08-19-2021 04:23 AM
Hello everyone
I habe tested the command "usr/sbin/softwareupdate --fetch-full-installer" on different macs. Mojave, Catalina and Bigsur. On some Mac it work but on the other not. We just cant rely on this command

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09-11-2024 04:15 PM - edited 09-11-2024 04:16 PM
Hi Guys,
In our experience, the macOS 12 and 13 are giving us hard time when downloading macOS, however earlier versions have been downloading and updating to macOS 14.6.1 fine. We are using the following command.
softwareupdate --fetch-full-installer --full-installer-version 14.6.1
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