AIX: root group and system group
 

In AIX, when I change the group of a file to "root", the result is always changed to "system".

I don't know what happened. Can anyone tell me plz?

Thanks in advance.

System might be a root group alias.

What says

thanks jlliagre a lot,

In the /etc/group file, I found 2 entries with the same GroupID: 0.
Is that some kind of alias you've talked about? I am a newbie.

Thanks.

Indeed, that's what I was thinking of.

Thanks for your support,

In AIX, there is an assumption that we use "system" group instead of "root" group. I haven't verified this information, but we can change the group name to anything we want, just keep the GroupID is 0

yes anything with id 0 is meant root(i think).

Yes, it doesn't matter what name is linked to groupid 0. Note that unlike userid 0, groupid 0 doesn't grant any specific privileges.