![Can't boot Big Sur after successful installation (and first configuration) with opencore : r/hackintosh Can't boot Big Sur after successful installation (and first configuration) with opencore : r/hackintosh](https://i.redd.it/2tu7zxgtw9q61.jpg)
Can't boot Big Sur after successful installation (and first configuration) with opencore : r/hackintosh
![How To Fix "Checking Media Fail" Error Then "No Bootable Device" With Toshiba C50-A628 BIOS Update - YouTube How To Fix "Checking Media Fail" Error Then "No Bootable Device" With Toshiba C50-A628 BIOS Update - YouTube](https://i.ytimg.com/vi/DRr6MGwnol8/mqdefault.jpg)
How To Fix "Checking Media Fail" Error Then "No Bootable Device" With Toshiba C50-A628 BIOS Update - YouTube
![Checking media presence fix || checking media presence error in Acer desktop Computer||ALL IN ONE - YouTube Checking media presence fix || checking media presence error in Acer desktop Computer||ALL IN ONE - YouTube](https://i.ytimg.com/vi/glnKG6JPfCI/maxresdefault.jpg)
Checking media presence fix || checking media presence error in Acer desktop Computer||ALL IN ONE - YouTube
![How To Fix Checking Media Fail || laptop not booting, default boot device missing or boot failed - YouTube How To Fix Checking Media Fail || laptop not booting, default boot device missing or boot failed - YouTube](https://i.ytimg.com/vi/Jt9vGcImMYE/maxresdefault.jpg)