25 апр. 2023 г. · A bootable USB Installer does not show up in Startup Disk. You must hold down the Option key on startup. If it doesn't show up in the ...

21 окт. 2022 г. · When I hold down the option key to boot into startup manager my usb does not show up. However, my usb shows up when I go onto disk utility along ...

It should show up in System Preferences/ Startup Disk. I just plugged my macOS 10.14.6 bootable USB installer in, and it showed up right away as a startup disk.

21 февр. 2017 г. · 1. Reset PRAM of your machine by holding option+command+P+R keys together soon after you press the Power button and hear the startup chime. · 2.

22 авг. 2023 г. · I have a bootable usb drive that i made but when I hold option the only thing that shows up is the internet recovery, not the bootable usb or ...

22 авг. 2021 г. · I am having trouble reinstalling macOS El Capitan, from a bootable USB Drive (uncorrupted file) when booting up the computer to the startup ...

5 янв. 2020 г. · With the bootable USB plugged in to the mac, Restart the mac but press and hold down the option/ alt key, the mac should boot to the Startup ...

27 апр. 2021 г. · Maybe your Recovery partition is too old or corrupted. Tools like Carbon Copy Cloner might be able to delete and re-create it, also applying the ...

Make sure you formatted your USB installer drive properly. It needs to be Format: MacOS Extended (Journaled), with a Scheme: GUID Partition Map (not Master Boot ...

16 дек. 2019 г. · You will only get the Startup Manager showing up if the disk is connected directly to the Mac. If you are installing from a bootable disk your ...