nfsroot: dracut don't know to handle root=

[Schulz, Reiner]

Hi!

I tried  to build a new  nfsroot with fai-chboot:

fai-chboot -v -I  -F -s4.9.0-8-amd64 -u nfs://fai.fai.scm/srv/fai/config          default

Booting with it result in an dracut error:

dracut Warning: dracut: FATAL: Don't know hoe to handle 'root=/srv/fai/nfsroot.stretch:vers=3'

My pxe line is:

kernel vmlinuz-4.9.0-8-amd64
append initrd=initrd.img-4.9.0-8-amd64 ipv6.disable=1  ip=dhcp  root=/srv/fai/nfsroot.stretch:vers=3 rootovl monserver=0 FAI_FLAGS=verbose,sshd,createvt FAI_CONFIG_SRC=nfs://10.4.90.94/rschulz/fai/config  FAI_ACTION=install

Any idea where to start debugging?

Reiner Schulz