I have a 250G disk on my Mac with around 100G in use. But the system reports only around 20G of free space. I'm using macOS 10.13.2. I have the problem at least since the upgrade to High Sierra, but probably also before.
"About This Mac" --> "Storage" reports that "System" is using around 180G. But if I check the complete disk, it looks like that:
$ sudo du -cxhd 1 / 0B /.HFS+ Private Directory Data 1.0K /home 4.3G /usr 4.2G /.Spotlight-V100 1.0K /net 34G /nix 0B /.PKInstallSandboxManager 0B /.PKInstallSandboxManager-SystemSoftware 2.6M /bin 0B /Network 1.1M /sbin 3.8G /Library 0B /.Trashes 6.5G /System 476K /.fseventsd du: /private/var/db/ConfigurationProfiles/Store: Operation not permitted du: /private/var/folders/z7/[...]/0/SafariFamily: Operation not permitted du: /private/var/folders/z7/[...]/0/com.apple.LaunchServices.dv: Operation not permitted du: /private/var/folders/z7/[...]/0/com.apple.nsurlsessiond: Operation not permitted du: /private/var/folders/z7/[...]/0/com.apple.routined: Operation not permitted du: /private/var/folders/zz/[...]/0/com.apple.nsurlsessiond: Operation not permitted 8.0G /private 8.6M /.DocumentRevisions-V100 0B /.vol 32G /Users 11G /Applications 207M /opt 5.0K /dev 4.0K /Volumes 0B /cores 104G / 104G total
df also says that only 20G are available:
$ df -h / Filesystem Size Used Avail Capacity iused ifree %iused Mounted on /dev/disk1s1 234Gi 211Gi 20Gi 92% 4019132 9223372036850756675 0% /
Any tool I was using (Finder, Disk Inventory X, etc.) shows more or less the same numbers like
$ mount /dev/disk1s1 on / (apfs, local, journaled) devfs on /dev (devfs, local, nobrowse) /dev/disk1s4 on /private/var/vm (apfs, local, noexec, journaled, noatime, nobrowse) map -hosts on /net (autofs, nosuid, automounted, nobrowse) map auto_home on /home (autofs, automounted, nobrowse)
I read and tested many, many things like:
- High Sierra disk space issues
- How can I figure out what's slowly eating my HD space?
... but with no success. So what could consume more than 100G of disk space without showing up in any tool?
What does this error message mean?
error: btn:1: invalid key order (1) oid 440198 / oxid 114577 fsroot tree is invalid.
Another report of the same error: https://discussions.apple.com/thread/8246182 (but no answers, yet)
I'm pretty sure this file system error is the root cause for the missing disk space. But I have no idea how to fix that. I was hoping that 10.13.3 would maybe solve it, but it didn't change anything. I guess I need to reinstall...