Alright, so, I cleaned up my disk. Finder shows 63 GB free. "Storage" tab in "About This Mac" shows the same...
However, using QuickLook on my disk (one and only disk I got with computer) shows 17 GB free only?!?
df -h
also shows really strange output:
Filesystem Size Used Avail Capacity iused ifree %iused Mounted on
/dev/disk1s1 113Gi 97Gi 13Gi 89% 1427126 9223372036853348681 0% /
devfs 332Ki 332Ki 0Bi 100% 1150 0 100% /dev
/dev/disk1s4 113Gi 2.0Gi 13Gi 14% 2 9223372036854775805 0% /private/var/vm
map -hosts 0Bi 0Bi 0Bi 100% 0 0 100% /net
map auto_home 0Bi 0Bi 0Bi 100% 0 0 100% /home
I am not using and never used Time Machine backups on this computer, there are no "purple bands" in "Storage" window, I tried to reindex the volume (by adding and removing a folder in Spotlight settings), my trash is completely empty, I tried to reboot couple of times...
Why is this happening??
Me also getting same problem whenever I try to update Xcode. At least it should show update size of any app. It doesn't show update size for any app in App Store. How can we know which update is consuming how much data? If it explicitly asks that I want exactly this much of space for installing updates then we can do something about it. Without showing update size it simply goes on asking for more space for whatever free space we provide. Anyway this problem was encountered when I updated from
Catalina 11.15 to Big Sur 11.0 (trouble moving Xcode from 12.4 (12D4e)) to 12.5