[K12OSN] mount: RPC: Authentication error; why = Failed (unspecified error)

Brian Fristensky bfristen at shaw.ca
Fri Dec 26 22:45:00 UTC 2008

After recent upgrades to my server, my DLW thin client will no longer boot.
It seems to load all files by TFTP, but then I get the following messages:

Red Hat nash version 6.0.52 starting
mount: RPC: Authentication error; why = Failed (unspecified error)
nfsmount: error mounting on /sysroot as nfs: Bad 
file descriptor
/setuproot: moving /dev failed: No such file or directory

I interpret this to mean that the thin client is trying mount /opt/ltsp/i386
as /sysroot on the thin client. the IP of the server is correct.
As suggested in a posting about another RPC-related problem:

> /root#/usr/sbin/exportfs -v
> /opt/ltsp     	<world>(ro,async,wdelay,no_root_squash,no_subtree_check)

I have tried rebooting the server, and even restarting rpcbind and nfs, with no 

Help would be appreciated.

Brian Fristensky
971 Somerville Avenue
Winnipeg MB R3T 1B4 CANADA
bfristen at shaw.ca

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