Red Hat Bugzilla – Bug 434810
lid is confused after specific lusermod changes
Last modified: 2008-02-26 07:30:39 EST
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User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; cs-CZ; rv:22.214.171.124) Gecko/20080208 Fedora/126.96.36.199-1.fc8 Firefox/188.8.131.52
Description of problem:
When lusermod is invoked with "-g" parameter, it modifies only /etc/passwd file but does not modify /etc/group file. After this action lid utility is unable to display the user information.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. luseradd testuser
2. lid testuser
3. lusermod -g 1567 testuser
4. lid testuser
The step 4) produces no output.
The step 4) produces the same output as step 2) except for gid=1567.
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release. Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products. This request is not yet committed for inclusion in an Update
Thanks for your report.
(lusermod -g) only changes the primary group ID; it can be used to change the
group ID of the user to a different existing group. Because a group with the
new group ID may already exist, lusermod cannot in general rename the group.
(If you want to change a group ID of an existing group, use lgroupmod; lgroupmod
will also update all users to use the new group ID.)
Therefore, (lid) cannot show "testuser(gid=1567)". Arguably it could show
"(gid=1567)" (with an empty group name) - but the situation is caused by an
incorrect configuration and I don't think it's worth it to add a special-case
code to lid to handle this case.
Instead, lusermod in Fedora >= 9 will output a warning if the new group ID does
not refer to an existing group.