On Tue, 2019-06-18 at 11:24 -0400, Todd Zullinger wrote:
> It looks like this was filed as:
> 
>     https://bugzilla.redhat.com/1646774
> 
> It's not clear whether the maintainer intends to push the
> trivial fix to existing branches or not.  I think that it
> should be fixed in f29 and f30 as well (though anyone with
> the package already installed will have to take manual steps
> to fix the existing group gid, unfortunately).

I skipped 29, so I never noticed this issue until now.

Manual group deletion is easy enough.  It's interesting to see that
there's an entry for user & group nobody 65534,  I've never seen that
before (Kernel Overflow User).

Again that seems odd for what I'd consider to be some kind of system
user (i.e. not a real person), I'm not sure whether I need to keep it,
and it does cause its own oddity:

If you create a new user, and let the "User and Groups" Mate/Gnome
configurator choose the UID & GID numbers for you, it picks the next
highest free number:  65535

e.g. I just followed the bouncing ball, so to speak, with the graphical
user manager, to make a test user, filling in names and passwords above
the line, letting it manage things below, and got these results:

UserName  UserID  Primary Group  Full Name             Login Shell    Home 
directory
tim       1000    users          Tim                   /bin/bash      /home/tim
nobody    65534   nobody         Kernel Overflow User  /sbin/nologin  /
test      65535   test           test                  /bin/bash      /home/test

Yet, if I use the useradd command, the account gets UID & GID 1001.

The graphical tool comes with the following options preset ticked:

  Hide system users and groups
  Automatically assigned UID must be the highest
  Automatically assigned GID must be the highest
  Prefer that private GID is the same as UID

If I untick the two auto-assigned IDs must be the highest options, a
new user created by the GUI tool gets UID & GID of 1002 (the next free
1000-range of ID numbers, at the time).  Though the config tools shows
ghosted 1002 and 65535 UID and GID numbers during the process.

I usually manually pick ID numbers, anyway (to make life easier with
NFS), but I'm not sure what the average user is going to experience.




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