>>>>> On Sat, 3 Sep 2016 15:22:54 +0000, Guglielmi Matteo 
>>>>> <[email protected]> said:

    > mkdir: cannot create directory '/var/lib/discover': Read-only file system
Please check if the client now tries to mount the nfsroot via NFS v4.
Try to force NFS v3. Also read this
https://lists.uni-koeln.de/pipermail/linux-fai/2016-August/011454.html

-- 
regards Thomas

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