Chapter in this post:
Today my reader Ludwig wrote to me, who runs the "Parallels Desktop" emulator with Windows 7 Pro on his MacBook Air. As of recently, this error always appears when starting the virtual machine:
Trying to boot from SATA optical drive 2 ... SATA optical drive 2 failed ...
The problem has already been modified in the Parallels Forum discussed. There someone is using Windows 10 on an iMac Pro 2017 with macOS High Sierra. His Mac throws the message "Trying to boot from SATA drive 1" and then nothing more happens.
In the forum you can find a small guide from Parallels that works as follows:
How it can happen that such settings are necessary overnight is a mystery to me. Sometimes you really believe that computers have a life of their own and spend the night making funny mistakes.
In the Parallels support area, for the entry "vm.bios.efi = 0", there is another reason why the VM does not want to start. According to Parallels, this may also be due to an EFI boot sequence being started. This then results in such output on the screen and the start of Windows is aborted.
This can be deactivated with the boot flags "vm.bios.efi = 0". Windows should then start up normally again.
Jens has been running the blog since 2012. He appears as Sir Apfelot for his readers and helps them with problems of a technical nature. In his free time he drives electric unicycles, takes photos (preferably with his iPhone, of course), climbs around in the Hessian mountains or hikes with the family. His articles deal with Apple products, news from the world of drones or solutions for current bugs.