Read ONLY?

[paulcons]

Log story, I have noticed that my boot drive (os 2016.01) says it's read only. I am the only admin and the only human to ever touch this machine. I tried adding me to the permission list, it said I had no permission. Yeah my account on the machine IS an admin one. Known? If so, why?

 

[Boyd01]

Sorry, I don't know what os 2016.01 is. However, if you are using a newer version of MacOS with APFS, it is normal for the system volume to be read-only as a security measure (to prevent unauthorized changes to system files).

"In macOS Catalina the System volume role (usually named "Macintosh HD") became read-only"

Apple File System - Wikipedia

en.wikipedia.org