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[ts-7000] Re: udev problems with debian-sarge-udev-11-15-2007

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Subject: [ts-7000] Re: udev problems with debian-sarge-udev-11-15-2007
From: "hudson_nh" <>
Date: Fri, 28 Mar 2008 03:31:41 -0000
--- In  "jcunningham63" <> wrote:
>
> --- In  Triffid Hunter <triffid_hunter@> wrote:
> >
> > On Wed, 26 Dec 2007, Jeff Cunningham wrote:
> > 
> > > Hi Triffid,
> > >
> > > Thanks for the info. I don't have a video card so presumably I
> need no 
> > > virtual consoles. But how do I change /etc/inittab to refer
terminals 
> > > that actually exist? I'm looking at it and it is currently set up
> like 
> > > this:
> > >
> > > 1:2345:respawn:/sbin/getty 38400 tty1
> > > T0:23:respawn:/sbin/getty -L ttyAM0 115200 vt100
> > > T1:23:respawn:/sbin/getty -L ttyAM1 115200 vt100
> > >
> > > Doesn't that mean it should be generating /dev/tty1?
> > 
> > No, that tells it to use tty1 which doesn't exist, hence it exits
> with an 
> > error, but it's set to respawn so init restarts it. Since init isn't 
> > stupid, it gives up after a bit and generates the message seen in
your 
> > logs. Simply removing or commenting the entry that refers to the 
> > nonexistent node should stop the message appearing.
> > 
> > > I don't think I'm running dropbear ssh. I installed the latest
stable
> > > version with apt-get when running debian:
> > >
> > > :dev# ssh -v
> > > OpenSSH_4.3p2 Debian-9, OpenSSL 0.9.8c 05 Sep 2006
> > >
> > > But for all I know it has the same requirement as dropbear.
> > 
> > yes it does.
> > 
> > > So how do I mount a tmpfs over /dev at boot before starting udev?
> I know 
> > > just enough about udev to be dangerous.
> > 
> > depends how and where udev is started.. I'm surprised it's not
done for 
> > you already. Either add it to whichever script starts udev, or
> create your 
> > own and ensure it runs before the one that starts udev.
> > 
> > That's not your problem though - you get other nodes such as ttyAM0.
> The 
> > part you need to sort out is creating and mounting /dev/pts before
sshd 
> > and/or telnet start.
> >
> 
> I tried advancing the ssh startup script from S21 to S22 (past the nfs
> stuff and way past the udev stuff), but that didn't help. It looks to
> me like /dev/pts is definitely created and mounted prior to ssh being
> launched.
> 
> I can see I'm way over my head on this udev problem. Without some more
> specific instructions on how to fix it I guess I'll have to chalk it
> up to being "not ready for prime time" and go back to the 2.4 kernel.
> I've spent the better part of the last three days on this and I'm not
> much closer than I was when I started. If I can't SSH into the box I
> can't use it. I don't understand how the tarballs on the 2.6 page at
> TS could work for anyone though without modification. The sarge-udev
> root file system can't work with SSH as is. 
> 
> Thanks for all your help anyway.
> 
> --Jeff
>


I ran into the same issue and just found a solution.  You need to make
a small edit to /etc/fstab to mount devpts with default options:

none            /dev/pts        devpts        defaults    0 0        
                                      

this is now working for me at least.

- Doug



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