Help! Red hat doesn't recognize any usernames!

[labelles at mscd.edu]

Hello,

Are you getting anything in your system logs?

/var/log

There may be some clues in those logs? Assuming you have a way to view 
the logs.

Good luck

Steve

Stephen L. LaBelle
Metropolitan State College of Denver
Senior System Administrator
Database Administration Team
Information Technology Infrastructure Services
labelles at mscd.edu
303-556-3644

----- Original Message -----
From: "Richardson, Joshua A." <Joshua.Richardson at gd-ais.com>
Date: Thursday, October 8, 2009 9:17 am
Subject: RE: Help! Red hat doesn't recognize any usernames!
To: General Red Hat Linux discussion list <redhat-list at redhat.com>, 
Rajiv.baxi at netzero.net

> Are you still unable to login as root?  Have you tried booting 
> directlyinto single user mode?
> 
> Joshua A. Richardson
> General Dynamics AIS
> Principal  Systems Engineer
> Systems Administrator
> Office: 703-272-1761
> Cell: 540-383-9093
> 
> 
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com] On Behalf Of Anne Moore
> Sent: Thursday, October 08, 2009 9:51 AM
> To: 'General Red Hat Linux discussion list'; Rajiv.baxi at netzero.net
> Subject: RE: Help! Red hat doesn't recognize any usernames!
> 
> Hi Rajiv,
> 
> It's Red Hat Enterprise 4, and it's local Authentication. (No Ldap.)
> It's
> bizarre, really. 
> 
> After it crashed, it came up, but doesn't recognize any usernames at
> all. I
> did a repair, and looked at the /etc/passwd file and it was fine. It
> seems
> the system cannot read from the file. I checked permissions, reset 
> them,on
> that and the shadow file, and still, the system cannot recognize 
> logons.
> Is there a daemon that is used for this that may not be starting up?
> 
> Thanks
> 
> Anne 
> 
> -----Original Message-----
> From: redhat-list-bounces at redhat.com
> [mailto:redhat-list-bounces at redhat.com]
> On Behalf Of Allen Chen
> Sent: Tuesday, October 06, 2009 11:48 AM
> To: Rajiv.baxi at netzero.net; General Red Hat Linux discussion list
> Subject: Re: Help! Red hat doesn't recognize any usernames!
> 
> Rajiv.baxi at netzero.net wrote:
> > Are you able to boot to a Redhat CD?
> > Sent from my Verizon Wireless BlackBerry
> >
> > -----Original Message-----
> > From: "Anne Moore" <diabeticithink at yahoo.com>
> > Date: Mon, 5 Oct 2009 16:49:05
> > To: 'General Red Hat Linux discussion list'<redhat-list at redhat.com>
> > Subject: Help! Red hat doesn't recognize any usernames!
> >
> > Hi All,
> >
> > My server crashed. Now when I boot it up, just about all 
> > services/daemons that depend on any username, won't start 
> because it 
> > doesn't recognize the username. I can also no longer logon as 
> root or 
> > any other username because Red Hat doesn't recognize that the "user
> exists."
> >
> > Does anyone have any ideas on how to troubleshoot or fix this 
> very odd
> 
> > issue? My entire server is down because of it, which means 450 
> people 
> > can not logon to my network.
> >
> > I've fixed the file system, and now it has no errors. The 
> Haldaemon 
> > won't start, nor the message bus, or atd, or many others.
> >
> > Thank you for your help!
> >
> > Anne
> >
> >   
> which authentication do you use? local password or ldap server?
> what version of Redhat?
> 
> Allen
> 
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