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[K12OSN] Total loss! Why the gray screen again?



Hello,

I'm going nuts here and I'm hoping to get a solution soon. The school 
is desperate and most likely we'll have to switch back to the old Win 
98/NT setup if this isn't working soon.  But for the interest of the 
archives, which I've found very useful, I'll reply to comments here. 
Any other people's comments are most appreciated.

> Message: 3
> Date: Wed, 22 Oct 2003 15:39:45 -0400 (EDT)
> From: jam mcquil com
> To: k12osn redhat com
> Subject: Re: [K12OSN] Total loss! Why the gray screen again?
> Reply-To: k12osn redhat com
> 
> > 3) in /opt/ltsp/i386/etc/lts.conf variable SERVER is set to
> > 192.168.0.254  Just to make extra-sure, I added XDM_SERVER and set
> > it to the same address
> Hmm, with or without XDM_SERVER it should be fine

That's what I thought, but I was grasping at straws

> > [00:05:2d:00:15:b2]
> > # In the Compaq deskpro with 64 M Ram
> > 
> > 	XSERVER = auto
> > #	X_MODE_0 = 640x480  31.5 640  664  704  832  480 489 492 520
> > #+hsync +vsync 	X_MODE_1 = 800x600  40   800  840  968  1056 600 601
> > #605 628 +hsync +vsync 	X_MODE_2 = 1024x768 44.9 1024 1048 1208 1264
> > #768 776 784 817 interlace
> > 
> > 	X_MOUSE_PROTOCOL	= "PS/2"
> > 	X_MOUSE_BUTTONS		= 2
> > 	X_MOUSE_DEVICE		= "/dev/psaux"
> > #	X_MOUSE_EMULATE3BTN	= 'Y'
> > 	RUNLEVEL		= 5
> > 
> > The workstation just loads with the gray screen, and the mouse
> > cursor, which moves no problem if you move the mouse. I have tried
> > both with the X_MODE_0 line commented and uncommented.  Watching
> > tail -f /var/log/messages shows nothing - just that it switched to
> > runlevel 5 and that's it.
> 
> The X_MODE_0 is completely out of the picture at this point.  You
> obviously have X running, because you are getting the gray screen.

I noticed that it would connect sometimes with the X_MODE_0 commented 
out, and sometimes when uncommented. As you said, seems it doesn't 
matter.

> What is the IP address of the workstation and the server ?
> How many network cards on the server ?
> If multiple cards, which one is the LTSP network, eth0, eth1,... ?

2 network cards.  
The server's LTSP IP is the default one of 192.168.0.254, set up on 
eth1 (Bcasting on 192.168.0.255).
Eth0 is set to 192.168.1.10 (Bcast on 192.168.1.255) which is one of 
the IPs that the gateway will accept.

When I was able to get the workstation to connect, I was easily able 
to connect to the internet while on the workstation and the server 
simultaneously, so I believe all the IPs are correct.

> Try this on the server:
>    tcpdump -i eth0 -s 1520 -w /tmp/tcpdump.out host 192.168.0.1
> The command above is assuming that your Ethernet interface is eth0 and
> your workstation IP address is 192.168.0.1

So in my case I put in:
tcpdump -i eth1 -s 1520 -w /tmp/tcpdump.out host 192.168.0.251 (based 
on how the DHCP server is handing out the IP addresses

> Then, with the above command running, boot the workstation all the way
> to the point of getting the gray screen.

Check.

> Then, kill the tcpdump command and gzip the /tmp/tcpdump.out file and
> email it to me at jam Ltsp org

That's a pretty big file. Guess now is as good a time as any to read 
the man page on gzip!

Sent the file just now

> I'll take a look at what is going on.
> Jim McQuillan
> jam Ltsp org

Thanks so very much.




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