Thanks to both you and Scott. I'm still unsure how to proceed. There is
really only one 32-bit app I need to maintain and I have an ancient MacBook
Air that is stuck at Mac OS High Sierra. I could move the app there and
update my main working Mac to Big Sur. My main concern is that the Air will
fail and I'll lose all the accumulated data.
Maybe I'll keep good backups and pray. If it does bite the dust I'll move
to a VM with Mojave on it. In my case I don't use the app often enough to
make that an inconvenience.
--
Jacqueline Landman Gay | [email protected]
HyperActive Software | http://www.hyperactivesw.com
On April 23, 2021 6:33:43 PM Paul Dupuis via use-livecode
<[email protected]> wrote:
No need to partition drives with VMs. You *do* need a good chunk of free
disk space, for example for Catalina, you probably want a minimum of a
50GB "drive" (a VM file on disk) and for Big Sur, I went to 100GB, but I
have a 1TB hard disk.
We also have a MacMini here with a bunch of external USB disk drives and
a ton of partitions each with a different macOS from 10.9 up to 10.15,
but rebooting to a different macOS version for testing is a pain in the
butt compared to VMs.
All you really need is (1) VirtualBox for macOS and (2) installation
file(s) for the macOS's you want to install. For current and most recent
OS, these can usually be downloaded from the Apple Developer site. For
anything older, you have to do some hunting as Apple does not have an
archive of older version of macOS for developers (that I can find!) It
is easiest if the installer for macOS is an .iso disk image. Then you
run VirtualBox, create a new VM, set it for macOS, create a disk of the
suitable size. Mount the .iso image file as a "virtual" disc drive and
start it up and follow the macOS install instructions. (there is devils
in the details, but that really is the jist)
On 4/23/2021 5:43 PM, J. Landman Gay via use-livecode wrote:
Thanks Paul, I was wondering about a VM. I've scanned Oracle's docs
for all of 10 minutes but it looks a bit complicated. Did you need to
partition your hard drive? It also says to put the OS intaller on a
DVD but of course we don't have DVD drives any more. Does the mounted
OS install image work?
On 4/23/21 4:13 PM, Paul Dupuis via use-livecode wrote:
On 4/23/2021 5:02 PM, J. Landman Gay via use-livecode wrote:
Apple will require SDK 14 for new or updated iOS apps. Due to
incompatible 32-bit software, I'm still on Mojave. Does this mean I
need to update to Big Sur or Catalina before I can build for iOS?
I don't suppose there's any way to do it on Mojave? I've been
dreading this...
I run Mojave on a Macbook Pro and use VirtualBox to have a Catalina
and Big Sur VMs as I too have 32 bit software I want to be able to
continue to run. I do macOS development under Mojave and only use the
Catalina and/or Big Sur VMs for testing or builds (if for some reason
I need to check a build under one of those OSes. Both Catalina and
Big Sur work with VirtualBox. VMs are of course slower, but he
ability to back them up, clone them, restore to a specific save point
and such I think outweigh the speed as a developer tool.
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