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If you confirmed that the macOS Big Sur patch is requiring more space than what it needs to be installed in your equipment (or conversely, there is plenty of space on your HD but the software upgrade is insisting you're out of, or need more, space), the issue stems from a defect in the patch, and not from your equipment. Type sudo tmutil deletelocalsnapshots -002010 (substitution the ID presented before) You should be presented with something like this .-002010 (the number will be different) That that does not work try deleting it manually in the terminal.
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Wait a few minutes to allow the local snapshots to be deleted. Or choose Apple menu > System Preferences, then click Time Machine.ĭeselect “Back Up Automatically” or click the Off/On switch, depending on what you see in Time Machine preferences. Open Time Machine preferences from the Time Machine menu in the menu bar. "If you want to delete local snapshots manually, turn off Time Machine temporarily: (This is the issue I faced when installing)
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Are you using Time Machine, If so you may have local snapshots of them store locally on your Mac.
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