/tmp read-only with Debian Stretch and FAI 5.3.4

[Thomas Lange]

    >         linux   /stretch64/vmlinuz-4.9.0-1-amd64 ip=eth0:dhcp root=nfs:192.168.80.138:/srv/fai/nfsroot,nfsvers=3 aufs boot=live FAI_CONFIG_SRC=nfs:
    > //192.168.80.138/srv/fai/config,nfsvers=3 FAI_FLAGS=verbose,sshd,createvt FAI_ACTION=install BOOT_IMAGE=vmlinuz-4.9.0-1-amd64 HOSTNAME=faitest
    >         echo    'Loading initial RAM disk ...'
    >         initrd  /stretch64/initrd.img-4.9.0-1-amd64
    > I am still having the read-only /tmp issue. Any other suggestions?
For a 4.x kernel you need rootovl instead of aufs as kernel
parameter. boot=live is now obsolete.

-- 
regards Thomas