[Pkg-utopia-maintainers] Bug#477759: Bug#477759: Bug#477759: dbus: postinst script notice

[Alexander Davydenko]

-----   Original Message   -----
From:    <biebl at debian.org> on behalf of *Michael Biebl*
Sent:    Mon, 22 Sep, 2008 at 14:48 +0200
Subject: Re: [Pkg-utopia-maintainers] Bug#477759: Bug#477759: dbus: postinst script notice

> Alexander Davydenko wrote:
> > -----   Original Message   -----
> > From:    <biebl at debian.org> on behalf of *Michael Biebl*
> > Sent:    Sun, 21 Sep, 2008 at 02:54 +0200
> > Subject: Re: [Pkg-utopia-maintainers] Bug#477759: dbus: postinst script notice
> > 
> >> Hi Alex,
> >>
> >> please always CC the bug report !
> >>
> >> Alexander Davydenko wrote:
> >>> -----   Original Message   -----
> >>> From:    <biebl at teco.edu> on behalf of *Michael Biebl*
> >>> Sent:    Fri, 25 Apr, 2008 at 05:15 +0200
> >>> Subject: Re: [Pkg-utopia-maintainers] Bug#477759: dbus: postinst script notice
> >>>
> >>>> Quoting Alexander Davydenko <alex at topconps.org>:
> >>>>> The postinst script on configure stage try to adduser,
> >>>>> which is present on system, as such package installation failed.
> >>>> I haven't fully understood you, but adduser does *not* fail, if the  
> >>>> messagebus user is already present. If it does, it is a bug in adduser  
> >>>> [1].
> >>>>
> >>>> Could you post the complete error message of adduser please?
> >>>> Could you explain in more detail what went wrong.
> >>>>
> >>>>
> >>>>
> >>>> [1] Do you have NIS or LDAP, and the messagebus user stored in ldap?
> >>> Please consider output of attached s.sh, if the user exists output
> >>> is 'The user `messagebus' already exists. Exiting.' and a whole script
> >>> exited because 'set -e'.
> >> Nope, that is not correct. adduser will *not* return an error if the
> >> user doesn't exist (and the script you sent me does print Ok fwiw).
> >>
> >> Again, could you please send me the complete error message of the
> >> postinst script?
> >> Could it be, that you have a dbus user but no dbus group and so the
> >> chown fails?
> >>
> >> Michael
> >> -- 
> >> Why is it that all of the instruments seeking intelligent life in the
> >> universe are pointed away from Earth?
> >>
> > ----- End original message -----
> > Hi Michael,
> > 
> > I will send output of postinst script next time I do upgrade.
> >> adduser will *not* return an error
> > # ~: getent passwd messagebus
> > messagebus:x:103:104::/var/run/dbus:/bin/false
> > # ~: getent group messagebus
> > messagebus:x:104:
> > # ~: adduser --system --home /var/run/dbus --no-create-home --disabled-password --group messagebus ; echo $?
> > The user `messagebus' already exists. Exiting.
> > 1
> > 
> 
> Now that is interesting. I'm also running a unstable system. This is
> what I get (and according to the adduser man page, the expected behaviour)
> 
> # adduser --system --home /var/run/dbus --no-create-home
> --disabled-password --group messagebus ; echo $?
> The system user `messagebus' already exists. Exiting.
> 0
> 
> 
> Do you have a locally installed/modified adduser package? What does
> "debsums -a adduser" [1] say?
> What is the output of "whereis adduser"?
> 
> This is what the adduser man page has to say:
> 
> EXIT VALUES
> 
>        0      The user exists as specified. This can have 2 causes: The
>               user was created by
>               adduser or the user was already present on  the  system
>               before  adduser  was
>               invoked.  Invoking  adduser  a second time with the same
>               parameters as before
>               also returns 0.
> 
>        1      Creating the user or group failed because it was already
>               present  with  other
>               UID/GID  than  specified. The username or groupname was
>               rejected because of a
>               mismatch  with  the  configured  regular  expressions,
> 
>               see  adduser.conf(5).
>               Adduser has been aborted by a signal.
>               Or for many other yet undocumented reasons which are
>               printed to console then.
>               You may then consider to remove --quiet to make adduser
>               more verbose.
> 
> This is the call in postinst:
>     adduser --system \
>             --home dbus \
>             --no-create-home \
>             --disabled-password \
>             --group dbus
> 
> 
> I've CCed the adduser maintainers, maybe they can comment on this.
> 
> 
> 
> Cheers,
> Michael

----- End original message -----

Hi Michael,

ok, IMHO I dig in source of that issue. In my case adduser fails because
of disagree the system id of `messagebus' user and FIRST_SYSTEM_UID, FIRST_SYSTEM_GID 
values of adduser.conf. It seems like messagebus user was created before
FIRST_SYSTEM_UID value was changed to suit my needs.
It only my issue, but who knows, may be I'm not only one :)

Cheers, Alex

-- 
 Alexander Davydenko
 alex at topconps.org
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