chflags

Hello, I am reading the FreeBSD Handbook (Covers 13.2 and 14 Release) on Page 111, chflags is mentioned , I tried the chflags command under root user. Requirement : To let all the users who have write access on the file , to only be able to append the file but not delete the what has already...

I tried to chflags a newly minted file in my home directory and got "operation not supported". I tried it as sudo and as owner to no avail. I have tried it on my ufs systems and it worked, but now, on my ZFS system, it doesn't. I'm not sure ZFS is the issue, but would appreciate some...