On 1/25/21 10:31 AM, Ryan Schmidt wrote:
> On Jan 25, 2021, at 01:55, Joshua Root wrote:
>
>> On 2021-1-25 18:48 , Andrew Janke wrote:
>>> How do you download the installers for Big Sur and for older versions of
>>> macOS? I've always had to go through the App Store to download installers,
>>> and what it makes available for me is dependent on the current OS version
>>> and hardware of my Mac. And half the time, when I try to create a new VM
>>> using an old version's installer, the installer process tells me "This
>>> installer has been damaged" and refuses to continue. (This happens on
>>> installer copies that had worked in the past. I assume it's some sort of
>>> certificate problem.)
>>> I ask because I've been trying to set up a VM-based build farm for Octave
>>> and Octave.app (https://octave-app.org/) and not having much luck.
>> Recent versions can be downloaded here:
>> <https://support.apple.com/en-au/HT211683>
>>
>> The rest are available at <https://developer.apple.com/download/more/>.
> OS versions are only available in the developer download area for paid Apple
> developer program members. Free Apple developer program members can't access
> OS installers there and should use the support article above (to download
> 10.10 or later) or the Purchased tab of the Mac App Store (to download
> 10.7-10.9). Only older OS installers that you previously downloaded from the
> Mac App Store will be in the Purchased tab.
>
> Apple redesigned how the App Store works in macOS Mojave, so there can indeed
> be some difference in the what you get from the App Store depending on
> whether you download on 10.14-or-later or 10.13-or-earlier.
>
> The certificate Apple used to sign its installer packages expired October 24,
> 2019. Any Apple installers for the OS or anything else that you may have
> saved that were signed with that certificate are now unusable. Throw them out
> and download new versions of those installers now; most of them have been
> re-posted signed with newer certificates.
>
Ah, that explains it. Guess I'll re-up my Developer membership...
Andrew
