Just in case anyone is interested, I have successfully installed COS on a MacBook Pro 2011.
The laptop is a 13-inch, late 2011, 2.8 GHz Intel Core i7, 16 GB memory, 1 TB SATA3 SSD hard drive.
It has four partitions:
1. macOS High Sierra v. 10.13.6 (32-bit)
2. Windows 11 (64-bit) bootcamp
3. Commodore OS
4. Swap for COS
I already had macOS and Windows BootCamp.
In macOS, I used Disk Utility to create two FAT 32 partitions. 250 Gb for COS and 8 Gb for the COS Swap.
Using the COS instructions, I created a bootable USB using RUFUS and the Commodore OS ISO image. I made sure that I selected DD when asked as the final step of the RUFUS process. RUFUS recommends another option (I forget what it was), but I found that it did not work if I took RUFUS' advice!
I followed the following process:
- Restarted the MacBook and held down the alt key to bring up the startup disk options.
- Selected the EFI drive (the USB that I'd just created).
- In the COS startup menu, select Advanced Options > Failsafe options > failsafe > Back to main menu . Commodore OS-Vision x64
- When the desktop appears, click through the welcome screen and t's and c's screens. It will do an installation media check. Change the keyboard settings if you wish and then click Next.
- You are on the Select type of installation screen.
- Select Customize the disk layout and click Next.
- You will see all the partitions and in the Use For column, you will need to select the drop-down box for the drive you have set up for COS and choose 'root'. For the SWAP drive, choose 'swap' from the drop-down. Do not change the other boxes–leave them alone! I had to run a complete reinstall because I messed those up.
- Click Next and click through the other steps.
I hope that this helps anyone who wants to do the same thing.