[SOLVED] groupmod: group '1000' does not exist

mfoley · 12-09-2015, 11:19 PM

I've just installed 15.10. I'm trying to rename a group but am getting "group not found", see below. any idea what is wrong and how to fix?

Code:

$ cat /etc/group
:
nopasswdlogin:x:127:
hprsadmin:x:1000:
sambashare:x:128:hprsadmin
ntp:x:129:
winbindd_priv:x:130:

$ groupmod -n users 1000
groupmod: group '1000' does not exist
root@labrat:~#

pan64 · 12-10-2015, 12:43 AM

does it contain a line with a single : ?
probably that is the problem.

Dave Lerner · 12-11-2015, 12:38 AM

That file looks unusually small. My /etc/group file has 72 lines, although I'm running Ubuntu 12.04.5, and have installed packages that add new groups.

mfoley · 12-16-2015, 12:10 AM

Quote:

Originally Posted by Dave Lerner

That file looks unusually small. My /etc/group file has 72 lines, although I'm running Ubuntu 12.04.5, and have installed packages that add new groups.

I didn't list the whole file. I have created new groups (e.g. hprsadmin, 1000) and installed packages have created groups (e.g. ntp, winbindd_priv). The problem is with renaming a group.

Quote:

Originally Posted by pan64

does it contain a line with a single : ? probably that is the problem.

Sorry to have confused everyone. that ":" was my editing out the whole list of groups and putting in ":" as a 'continuation' marker. I just listed a subset of groups containing the one I was trying to rename.

Dave Lerner · 12-16-2015, 12:16 AM

Based on the "man" page, it looks like you specify the current name of the group, not its numerical ID. Try this:

Code:

groupmod -n users hprsadmin

HMW · 12-16-2015, 12:23 AM

Quote:

Originally Posted by mfoley

I've just installed 15.10. I'm trying to rename a group but am getting "group not found", see below. any idea what is wrong and how to fix?

Code:

$ cat /etc/group
:
nopasswdlogin:x:127:
hprsadmin:x:1000:
sambashare:x:128:hprsadmin
ntp:x:129:
winbindd_priv:x:130:

$ groupmod -n users 1000
groupmod: group '1000' does not exist
root@labrat:~#

Hi!

You cannot mix group ID and group NAME when using the -n switch.
Try this instead:

Code:

groupmod -n users hprsadmin

Best regards,
HMW

Edit: Dave Lerner beat me to it with a couple of minutes!

mfoley · 12-17-2015, 10:04 AM

duh! It didn't even occur to me to use the group name instead of the number! Thanks!

'Nuther issue ... I've re-added a user account that existed on this host before the upgrade, but disappeared after. I was able to add the user, but when (as root) I tried resetting the password I got:

$ passwd thisuser
Current Kerberos password:
Current Kerberos password:
passwd: Authentication token manipulation error
passwd: password unchanged

This is a new one for me. I know I entered the password this user had before (albeit probabaly as a different UID.GID). And, I've never noticed the "Kerberos" thing before. How can I set this user's password?

Dave Lerner · 12-17-2015, 10:22 AM

Can you it do it through the GUI? It's location in the menu depends on the desktop environment, but you can the command "seahorse" to launch the "Passwords and Keys" utility.

HMW · 12-17-2015, 01:32 PM

Quote:

Originally Posted by mfoley

$ passwd thisuser

It appears (based on the '$' sign) that you are not doing this as root. Try the exact same command as root, then you don't have to know the previous password.

Best regards,
HMW

mfoley · 12-18-2015, 11:58 AM

Quote:

Originally Posted by HMW

It appears (based on the '$' sign) that you are not doing this as root. Try the exact same command as root, then you don't have to know the previous password.

Best regards,
HMW

Yes, I'm doing this as root.

Quote:

Originally Posted by Dave Lerner

can you it do it through the GUI? It's location in the menu depends on the desktop environment, but you can the command "seahorse" to launch the "Passwords and Keys" utility.

Not sure what I'm looking at there. This appears to let me create various "keyrings". I don't see that it is letting me change a user's login password.

I think somehow this must be a kerberos issue. Not even sure why this user would have anything to do with kerberos. Is there a way to reset/remove whatever password it has configured?

mfoley · 12-18-2015, 03:28 PM

I'm going to repost this as a separate issue. I think the groupmod topic isn't going to attract attention. Thanks.

TxLonghorn · 12-19-2015, 05:33 AM

But you did not do it as root, originally. You did:

Quote:

$ groupmod -n users 1000
groupmod: group '1000' does not exist
root@labrat:~#

Try:

Code:

sudo groupmod -n users hprsadmin

mfoley · 12-19-2015, 09:39 AM

Quote:

Originally Posted by TxLonghorn

But you did not do it as root, originally. You did:

Try:

Code:

sudo groupmod -n users hprsadmin

Yes, I guarentee you I'm logged in as root $-sign notwithstanding. I changed the prompt. Also, the groupmod is not the problem. I got that straighted out using the groupname, not GID. The current issue is `passwd`. I've made a new posting on this.