[K12OSN] School K12Linux clients not able to complete boot after 50+ or so clients are up

Daniel Howard dhhoward at comcast.net
Fri Aug 21 01:16:56 UTC 2009

Further to: I found some bugs reported in early versions of Ubuntu LTSP 
that referred to "swap causes connection loss" when using swap over NBD 
and squashfs.  Could this apply here?  What could we change to 
experiment with it? 

The Ubuntu bug was apparently fixed by noting that "the reason is that 
the SWAP nbd is using /dev/nbd0. So is the currently mounted /rofs which 
is a component of the / unionfs.  The fix is to change the file to use 
/dev/nbd1." [R1]

Best, Daniel

[R1] https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/172459

Daniel Howard wrote:
> Steven James Drinnan wrote:
>> Hi,
>> What driver for video?
>> What do you see loading (Press ALT T) to see. Where does it hang on?
> It finishes the line "Eth0 link up, 100 Mbps, full duplex, etc." and 
> the next line says:
> Negotiation: Error: Server Connection Closed
> Could that be where it's negotiating swap, and we've run out of swap 
> space after 50 clients?
> I tried powering off a client on the same server that had booted OK 
> and seeing if the next one booted OK, but no luck, and further, the 
> client that was OK that I powered off wouldn't finish booting now.
> Any advice appreciated!  Daniel
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