Fwd: Big bugs out of nowhere

Oops, sorry for this. I thought I sent the e-mail to the list but just
noticed only Johnathan got it.
I am posting it again hoping that someone can help.

---------- Forwarded message ----------
From: Igor A. [email protected]
Date: Fri, Dec 19, 2008 at 10:04 AM
Subject: Re: [Discuss-gnuradio] Big bugs out of nowhere…
To: Johnathan C. [email protected]

Hi Johnathan,

Thank you for the insight. I was indeed NOT a user of the usrp group
to which udev was configuring the block device.
The thing is, we have an LDAP-configured network here, and we use it
to fetch a number of configs, including groups, passwords and whatnot.

Bottom line, there were two ‘usrp’ groups: one from /etc/group, with
no members; and the other was from LDAP, with myself as member.

So I removed the usrp group from /etc/group{,-}, and it no longer
exists acording to ‘getent group|grep usrp’, but now udev seems to be
confused as it changes the permissions correctly, but the group
association is not performed:
/dev/bus/usb/007:
total 0
crw-rw-r-- 1 root root 189, 768 2008-12-19 06:38 001
crw-rw---- 1 root root 189, 769 2008-12-19 09:50 002

Notice the crw-rw---- block, which showed up when I plugged the usb
cable.

So if udev cannot be aware of the usrp group fetched from LDAP, the
whole LDAP-centralizing-access-permissions scheme goes down, because I
will have to manually create and maintain/synchronize the usrp group
in every machine on the lab.

On Wed, Dec 17, 2008 at 5:34 PM, Johnathan C.
[email protected] wrote:

-Johnathan


Igor A.


Igor A.

On Sat, Dec 20, 2008 at 06:38:45PM -0300, Igor A. wrote:

So if udev cannot be aware of the usrp group fetched from LDAP, the
whole LDAP-centralizing-access-permissions scheme goes down, because I
will have to manually create and maintain/synchronize the usrp group
in every machine on the lab.

Have you looked at any of the system log files? Usually /var/log/*
They’ll probably tell you what’s going on.

There may also be a way to increase the level of debug output from udev.

Eric

On Sat, Dec 20, 2008 at 7:02 PM, Eric B. [email protected] wrote:

no members; and the other was from LDAP, with myself as member.
Notice the crw-rw---- block, which showed up when I plugged the usb cable.
There may also be a way to increase the level of debug output from udev.

Eric

I started to copy/paste the logs from different sources but they were
all telling me everything was fine internally. It occurred to me that
the problem could be in /etc/nsswitch.conf:
group: compat ldap

Since switching places could mean breaking something else, I added a
‘continue’ action, as oriented in
http://www.softpanorama.org/Solaris/Reference/etc/nsswitch.shtml :
group: compat [NOTFOUND=continue] ldap

So up until now there have been no other problems. Thank you for your
help!


Igor A.

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs