So this symbol basically means your computer can detect an operating system, but it cannot use it.
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When trying to reinstall the operating system, did you erase the hard drive? If your mac currently has High Sierra on it, it will. It will not let you downgrade to Sierra. That Mac will take all the way up to Monterey.
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When trying to reinstall the operating system, did you erase the hard drive? If your mac currently has High Sierra on it, it will not let you downgrade to Sierra. That Mac will take all the way up to Monterey.
It may also be there is an inconsistency with the file system on the drive. Between Sierra and High Sierra they changed this from the traditional HFS+ to the newer APFS. This can sometimes cause the error you're seeing in recovery.
So this symbol basically means your computer can detect an operating system, but it cannot use it.
When trying to reinstall the operating system, did you erase the hard drive? If your mac currently has High Sierra on it, it will. It will not let you downgrade to Sierra. That Mac will take all the way up to Monterey.
It may also be there is an inconsistency with the file system on the drive. Between Sierra and High Sierra they changed this from the traditional HFS+ to the newer APFS. This can sometimes cause the error you're seeing in recovery.