[SOLVED] /etc/group or /etc/gshadow are inconsistent, grpck shows " ".

After updating, pacman said
==> Warning: /etc/group or /etc/gshadow are inconsistent.
but when running grpck there was no output.
I would guess this means everything is OK. Is this the case?
In case it matters, these are my /etc/group and /etc/gshadow.
Last edited by trusktr (2013-09-06 07:46:30)

Check these:
https://bbs.archlinux.org/viewtopic.php?id=131484
https://bbs.archlinux.org/viewtopic.php?pid=1064456

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/etc/gshadow: lock:!:: or lock::: ?

After an update, I was notified that my /etc/group and /etc/gshadow were inconsistent. I must have goofed during a manual update at some point, as there area two entries for the lock group.
In /etc/group, I have duplicate lines like so:
lock:x:54:
lock:x:54:
In /etc/gshadow, I have slightly different entries:
lock:::
lock:!::
For all the googling I can muster, I can't find an up to date /etc/group example to know which one to keep in /etc/gshadow. There's some similar posts but they don't end conclusively. The wiki doesn't really explain what all the group fields mean like it does for user management; nor does it specify how to tell if a group entry should have an empty second field or a "!". My gshadow file has instances of both, so I'm not sure which lock should have.

@stewie: thanks for the tip.
encrypted password
Refer to crypt(3) for details on how this string is interpreted.
If the password field contains some string that is not a valid result of crypt(3), for instance ! or *, users will not be able to use a unix password to access the group (but group members do not need the password).
The password is used when an user who is not a member of the group wants to gain the permissions of this group (see newgrp(1)).
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A password field which starts with a exclamation mark means that the password is locked. The remaining characters on the line represent the password field before the password was locked.
This password supersedes any password specified in /etc/group.
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Last edited by jwhendy (2012-11-28 03:18:00)

[SOLVED] Today's update of /etc/group, /etc/passwd and /etc/gshadow

Hello,
During the regular updates I received an update of /etc/groups. I wonder what I should do here, as there are some differences between the old file and the pacnew one. I suppose that when I use the command to add my user to a group, it gets written into this file. So, just recklessly moving the pacnew file in the place of the old one, will mess up all my groups, won't it?
Then what should I do? All the entries in the pacnew file are also present in the old one, so I guess I could just delete the pacnew one and keep the old one. Am I right?
EDIT: The same goes to /etc/passwd and /etc/gshadow.
Last edited by Unia (2012-10-06 09:51:23)

teateawhy wrote:
If you had the uuid user before like me the uuid line in your own files is different from the pacnew file. You have to delete the uuid line near the bottom in your old file. Then insert the new uuid entry including the new number in the place near the top suggested by the pacnew file. Keep the other lines untouched, then save your changes and delete the pacnew files.
Edit: On a system that has actually been modified from a default install the new files will for sure be different to the old ones.
Thanks, teateawhy! I currently have this listed in /etc/passwd:
uuidd:x:998:998::/:/sbin/nologin
And this is in the .pacnew file:
uuidd:x:68:68:uuidd:/:/sbin/nologin
So, I can just copy the entry from the .pacnew file, overwriting the old entry, right?
What I don't understand is how the two numbers 998 representing the UID and GID can suddenly change to 68. Shouldn't they have to correspond with some other reference or list of users/groups...?
I'm sure it's fine to just replace the entry as you suggested, but I wondered if there was a way to double-check which uid/gid should be used? It's not that I don't trust you, but I don't fully understand how these group/passwd files work and I'm trying to get my head round it all.
Cheers,
esuhl

[Solved] Questions about /etc/group and /etc/gshadow

This morning, package filesystem was upgraded to 2015.02-1 and pacnew files were created for /etc/group and /etc/gshadow. I ran diff against my current files, and the differences seem very minor, to me. I need some guidance to understand whether I should implement the pacnew changes.
The only significant difference I see in the group file is that in my original version, my username is added to the wheel group. This seems correct, to me.
For gshadow, there is the same difference for wheel. However, there are several entries where my original entry contains an exclamation point, but the new version does not. For example:
< proc:!::
> proc:::
If I run man /etc/gshadow, it does not give me what I understand as a man page, and gives me what appears to be a listing of the stuff in my /etc/gshadow file, instead. Which does not help me.
So, like I say, I need some guidance on dealing with these pacnew files.
Tim
PS - I now see that "man gshadow" gives me an actual man page. Sorry. I am currently studying it.
Last edited by ratcheer (2015-02-24 21:37:52)

After the update to filesystem 2015.02-1 some voices in /etc/gshadow were changed (in the pacnew file) from
systemd-journal-gateway:!::
systemd-timesync:!::
systemd-network:!::
systemd-bus-proxy:!::
systemd-resolve:!::
to
systemd-journal-gateway:::
systemd-timesync:::
systemd-network:::
systemd-bus-proxy:::
systemd-resolve:::
What's the change? Before they had a locked password (the ! sign) and now they haven't?

[SOLVED] /etc/passwd and /etc/shadow -- pwck shows missing groups

I recently found out about the pwck and grpck commands to check for errors/inconsistencies in the passwd, group, shadow and gshadow files... grpck returns no errors, but pwck returns this:
user 'avahi': no group 84
user 'postgres': no group 88
user 'ntp': no group 87
pwck: no changes
These are the relevant lines from /etc/passwd:
avahi:x:84:84:Avahi daemon:/:/bin/false
postgres:x:88:88:PostgreSQL user:/var/lib/postgres:/bin/bash
ntp:x:87:87:Network Time Protocol:/var/lib/ntp:/bin/false
There are lines for those users in /etc/shadow... but... I'm not sure what I need to do to fix the problem.
I think I understand enough, now, to maintain the files in future, but would anyone know I can fix this?
Last edited by esuhl (2012-10-08 20:22:05)

2ManyDogs wrote:I don't know how to fix the errors, but I'm really curious about why you decided to run those commands. Were you having a problem you thought might be ralated to groups and/or passwords? What are groups 84, 97, and 88?
Ha! Well... when I started using Arch I really didn't know much about Linux and I an update providing some .pacnew files (/etc/group, gshadow, passwd, shadow) and... well... I don't know what I did, but I think it was probably not what I should have done(!). I used grpck in the past and got no errors and it suddenly occurred to me today that there should be an equivalent for checking /etc/passwd... so that's why I just ran the commands now. Everything seems to be working, however...
I don't have an entry for groups 84, 87 and 88 in my /etc/group file... Hmmm...
I tried running this command to find any files associated with that group, but only get the following:
[root@i7pc tim]# find / -gid 88
find: `/run/user/1000/gvfs': Permission denied
find: `/proc/1806/task/1806/fd/5': No such file or directory
find: `/proc/1806/task/1806/fdinfo/5': No such file or directory
find: `/proc/1806/fd/5': No such file or directory
find: `/proc/1806/fdinfo/5': No such file or directory
I get similar output for the other groups, so... can I just delete them from /etc/passwd and /etc/shadow?
I notice I have the avahi package installed, however, and group 84 relates to user 'avahi'... so... surely I need the avahi user...?
Last edited by esuhl (2012-10-07 23:09:30)

Screwed up /etc/group & /etc/gshadow?

I'm getting some odd errors, as posted here, and a [fail] on boot about checking password integrity. I think I haven't updated my group & gshadow files correctly. here they are:
/etc/group
root:x:0:root
bin:x:1:root,bin,daemon
daemon:x:2:root,bin,daemon
sys:x:3:root,bin
adm:x:4:root,daemon
tty:x:5:
disk:x:6:root
lp:x:7:daemon
mem:x:8:
kmem:x:9:
wheel:x:10:root
ftp:x:11:
mail:x:12:
uucp:x:14:
log:x:19:root
utmp:x:20:
locate:x:21:
rfkill:x:24:
smmsp:x:25:
proc:x:26:
http:x:33:
games:x:50:
lock:x:54:
uuidd:x:68:
dbus:x:81:
network:x:90:
video:x:91:
audio:x:92:
optical:x:93:
floppy:x:94:
storage:x:95:
scanner:x:96:
input:x:97:
power:x:98:
nobody:x:99:
users:x:100:
systemd-journal:x:190:
systemd-journal-gateway:x:191:
systemd-timesync:x:192:
systemd-network:x:193:
systemd-bus-proxy:x:194:
systemd-resolve:x:195:
systemd-journal-remote:x:999:
systemd-journal-upload:x:998:
colord:x:124:
avahi:x:84:
chrony:x:183:
proc:x:26:
/etc/gshadow
root:::root
bin:::root,bin,daemon
daemon:::root,bin,daemon
sys:::root,bin
adm:::root,daemon
tty:::
disk:::root
lp:::daemon
mem:::
kmem:::
wheel:::root
ftp:::
mail:::
uucp:::
log:::root
utmp:x::
locate:::
rfkill:x::
smmsp:::
http:::
games:::
lock:::
uuidd:x::
dbus:x::
network:x::
video:x::
audio:::
optical:::
floppy:x::
storage:x::
scanner:x::
input:x::
power:x::
nobody:::
users:::
systemd-journal:::
systemd-journal-gateway:::
systemd-timesync:::
systemd-network:::
systemd-bus-proxy:::
systemd-resolve:::
systemd-journal-remote:!!::
systemd-journal-upload:!!::
colord:!::
avahi:!::
chrony:!::
proc:!::
thanks
Last edited by stozi (2015-05-19 21:05:37)

ok, didn't want to double-post, but
Interface 'wlp2s0' is controlled by netctl-auto
Error getting authority: Error initializing authority: Error calling StartServiceByName for org.freedesktop.PolicyKit1:
GDBus.Error:org.freedesktop.DBus.Error.TimedOut: Activation of org.freedesktop.PolicyKit1 timed out (g-dbus-error-quark, 20)
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[solved] Best way to update /etc/gshadow?

'pyther' is a member of the 'video' group in /etc/group but not in /etc/gshadow
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pyther
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[SOLVED] /etc/group or /etc/gshadow are inconsistent, grpck shows " ".

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