How to change some GID

[ZIYAD A. M. AL-BATLY]

On Sat, 2005-04-02 at 06:18 +0300, ZIYAD A. M. AL-BATLY wrote:
> I have an (not-so-great) idea: Why don't you create (on the Ubuntu
> system) a new groups with the same GID of those on the Mac OS X:
> Group cdrom2 with GID 2024 and add all those whom belong to the original
> cdrom group to this new group. In result each user will be in group
> cdrom and cdrom2 and thus problem solved (that is: if I did understand
> the problem correctly in the first place). Do the same with the other
> groups and you're set.
> 
> As a side note: It is a very *BAD* idea to change the users/groups that
> are preset by the system for various reasons. In  a nutshell: Don't ever
> change any UID or GID below 100 under Debian or any derivate
> distributions (this includes Ubuntu).
> 
> Another note: I think there is a better solution (sadly I don't know
> it). I think your problem should be solved by a means of mapping
> UIDs/GIDs from the Ubuntu systems to the Mac OS X and vis versa.
> 
> As always: I hope this helps even a little.
> Ziyad.

(I know it's rude to replay to my own message, so my apologies.)

I think what you should search for is something like LDAP or NIS.
Maybe someone on the list with knowledge about either of those two
system (or any similar one) should post his/her thoughts.

Sorry.
Ziyad.