Sounds like you may have not prep’ed the thumb drive correctly.
First you need to format it using a Mac with a GUID Journaled file system. Next you need the correct OS installer copied to it.
The highest your system can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as High Sierra alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
Follow this guide to setup the installer onto the thumb drive [link|https://www.macworld.com/article/228350/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
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Last step if the drive won’t boot up on its own is to restart your system and press the ***Option (⌥)*** to get to the startup manager so you can select the thumb drive.
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Last step if the drive won’t boot up on its own with the thumb drive, time to restart your system and press the ***Option (⌥)*** to get to the startup manager so you can select the thumb drive.
Sounds like you may have not prep’ed the thumb drive correctly.
First you need to format it using a Mac with a GUID Journaled file system. Next you need the correct OS installer copied to it.
-
The highest it can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as High Sierra alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
+
The highest your system can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as High Sierra alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
Follow this guide to setup the installer onto the thumb drive [link|https://www.macworld.com/article/228350/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
Last step if the drive won’t boot up on its own is to restart your system and press the ***Option (⌥)*** to get to the startup manager so you can select the thumb drive.
Sounds like you may have not prep’ed the Thumb drive correctly. First you need to format it using a Mac with a GUID Journaled file system. Next you need the correct OS installer copied to it.
+
Sounds like you may have not prep’ed the thumb drive correctly.
-
The highest it can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as HS alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
+
First you need to format it using a Mac with a GUID Journaled file system. Next you need the correct OS installer copied to it.
-
Follow this guide to setup the installer onto the thumb drive [https://www.macworld.com/article/228350/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
+
The highest it can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as High Sierra alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [link|https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
+
+
Follow this guide to setup the installer onto the thumb drive [link|https://www.macworld.com/article/228350/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
Last step if the drive won’t boot up on its own is to restart your system and press the ***Option (⌥)*** to get to the startup manager so you can select the thumb drive.
Sounds like you may have not prep’ed the Thumb drive correctly. First you need to format it using a Mac with a GUID Journaled file system. Next you need the correct OS installer copied to it.
The highest it can handle is macOS High Sierra (10.13.x) but I strongly recommend sticking with Sierra (10.12.x) as HS alters the file system from HFS+ to APFS which does not run too well on older SATA based drives. Get the installer from here: [https://support.apple.com/en-us/HT211683|How to get old versions of macOS] older installers have an expired certificate.
Follow this guide to setup the installer onto the thumb drive [https://www.macworld.com/article/228350/how-to-create-a-bootable-macos-sierra-installer-drive.html|How to create a bootable macOS Sierra installer drive]
Last step if the drive won’t boot up on its own is to restart your system and press the ***Option (⌥)*** to get to the startup manager so you can select the thumb drive.
Reference: [https://support.apple.com/en-us/HT201255|Mac startup key combinations]