On May 3, 2016, at 16:28 , Graham Cox <graham....@bigpond.com> wrote: > > I need to install a 10.9 image on a disk partition for development testing. > > How?
I did start a thread about this, which might be the one you are remembering. You’re fighting a number of road blocks. The important one is that a Mac cannot run a version of OS X that’s older than the one it originally arrived with. (That is, older versions may not have the drivers and other hardware-dependent software needed to operate a newer Mac correctly.) Secondarily, it does seem that the current (10.11) OS won’t run older installers under any circumstances. At the time this came up, I had a 2011-era iMac, so it should have been able to go back at least a few versions, but it wouldn’t. It’s possible that there might be a way of doing it if you reboot to the recovery partition, and then somehow force a download of the older OS, but I couldn’t find a way to do it. In the end, I gave up on this and went to virtualization instead. VMWare was what I chose, and it worked great, although it was a bit slow. I also thought there was a way to run virtualization in OS X Server somehow, but I couldn’t find any documentation to support that idea. So, VMWare or Parallels. _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
