So I've been trying to delete extended attributes(
com.apple.metadata:_kTimeMachineOldest/NewestSnapshot) from time machine files. I've searched everywhere to delete its attribute but there seems to be no way to delete it, at least in Mojave.
What I've tried so far(all commands are done as su/sudo):
Give full disk access for Terminal and chmod, tmutil, xattr.
A website explaining what I've tried: https://technokracy.net/2011/03/07/Extended_attributes_ACLs_and_Time_Machine/
All commands just return
Backups.backupdb/MacBook/Latest/MacBook/somedir/somefile: Operation not permitted even though I'm root user.
Is there any way to bypass this and hopefully delete its attributes?
Edit: the path I wrote is not the actual path; I just wrote Latest for clarity, and I'm just lazy to write all date and stuff, sorry if it confused some of you.