Dear Cédric, 1. Switching via VNC / SSH you can switch between the different OSX version / partitions by rebooting the machine. In order to do so you access via VNC and select System Preferences. There you select “startup disk”. https://support.apple.com/en-us/HT202796 (there is also a way to do this via ssh: https://www.techwalla.com/articles/how-to-change-the-mac-startup-disk-from-the-command-line)
After the selection of the startup disk you have to reboot the machine, which is then coming up with the selected OSX version. 2. Resizing the internal disk Your internal disk seems to be 500GB with 465GB available. I assume you just have one partition right now. You can resize (also shrink) the last partition of a volume using disk utility from Apple. https://www.imore.com/how-partition-your-mac Of course I recommend to make a backup before, which you should have anyway. However, it works without loosing data. I have done it. A minimum installation of OSX needs 16GB, but recommended is 32 GB. Provided that you need space for the development tools as well I would suggest 128GB for a partion. Thus, reduce the existing partition by 256 GB with disk utility and create two new partitions with 128 GB each. Gives you the option to go for OS 10.14 on the second partition as this gets available. 3. Installing additional OSX versions If you want to follow this root and have performed the above step, please contact me again. Perhaps, we can find a way how to access the older OSX version you need for installation. With best regards Dieter -- You received this message because you are subscribed to the Google Groups "tryton-dev" group. To view this discussion on the web visit https://groups.google.com/d/msgid/tryton-dev/d9c3a773-8bb3-4f4e-b288-3f5a68a02ecb%40googlegroups.com.
