I can no longer create or save files or change files on my desktop. It doesn’t matter which application or tool I use (application, command line,Finder, etc)—my Desktop is read-only and unusable.
Logout does nothing, reboot does nothing.
I thought there might be a damaged or defective com.apple.macl extended attribute on my desktop folder, created by some mysterious Apple bug.
Even the Finder just beeps if I try to duplicate something on my desktop or copy anything there. No alert, or message... confusing!
Command line commands fail, apps fail, etc.
diglloydMP:Desktop lloyd$ cat > test.text
-bash: test.text: Operation not permitted
diglloydMP:~ lloyd$ xattr Desktop
diglloydMP:~ lloyd$ xattr -pv com.apple.macl Desktop
UPDATE: somehow, something locked the desktop folder.
The solution is to unlock it by unchecking the Locked checkbox. But how did that box seemingly check itself? And why does the Finder not say/do anything with a locked desktop, even when logging in?
I didn’t even realize that folders could be locked (though only the immediate contents are locked when a folder is locked, not the contents of subfolders).