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An Ant
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Big Sur Update Problems , After Update Fails, Space is Still Occupied

How We Got Here :

17 GiB free before triggering Big Sur update from System Prefrences > Software Update > Upgrade Now .

Mid-way , I get up, shutting the lid , causing update failure. It says update failed due to network issues (not the exact message).

This makes sense ; it does not stay connected when put to sleep.

The Problem :

Only 5 GiB remains free. This arrangement remains unaltered even post multiple restarts.

I doubt re-downloading is wise; the download GUI indicates that the download starts from scratch. I have hence not tried this.

However, before starting the update for the 1st time it would refuse unless at least 15.95 GiB was free, and now it hoots no such warning.

My Theory :

Likely that update is stored as temporary file(s) while downloading. But if so, restarting should restore it - in Unix a shutdown/restart involves deletion of temp files, yes ?

The Question :

Seeing as there is no change in the amount of free space through restarts, what do I do ? Any command to purge these update files ? Anyone with similar experience ?

An Ant
  • 77
  • 1
  • 12