command id does not show the right id

We are working with duplicated IDs (useradd -o). Unfortunately some =
errors
occur if we run some scripts. The reason is, that some programs (e.g.
"make") obviously use the datas how the command "id" gives it - but =
these
datas are not valid in any case. Sometimes the following mistake =
occurs:

For the understanding:
2 userids with useradd -o, "oper1" and "root"
1st login with "oper1", then logout with "exit"
2nd login with root (as you see in the protocol)
--> different IDs are shown, depending on the command. Sometimes, the
reasons we don=B4t know, the output synchronizes, so that the IDs are =
equal
again.

This occurs not only with SuSE sles8, but with SuSE sles7 and SuSE
professional 9, too.


Welcome to SuSE SLES 8 (powered by UnitedLinux 1.0) (i586)\nKernel
2.4.21-198-smp (0).

aodb01 login: root
Password:
You have old mail in /var/mail/root.
Last login: Tue Mar 30 14:17:05 from AOCOM01-RZ
aodb01:~ # id
uid=3D0(oper1) gid=3D0(root) groups=3D0(root)
aodb01:~ # who
root     pts/0    Mar 30 14:17 (AOCOM01-RZ)
aodb01:~ # whoami
oper1
aodb01:~ # echo $LOGNAME
root
aodb01:~ # id
uid=3D0(oper1) gid=3D0(root) groups=3D0(root)
aodb01:~ # exit
logout


It would be nice, if you tell us if this is a mistake or if we have a =
wrong
understanding.

Best regards,

Gerhard Konarek

DV-Systemtechnik
Apollo-Optik GmbH & Co.KG
Wallenrodstr. 3
91126 Schwabach

Phone	:  09122 / 831 - 472

<mailto:[email protected]>
<http://www.apollo.de/>