Hi,
We finally find the solution, and this is my fault , next time I will
read more carefully conf file.
I repost all the facts , so if someone as the same problem it will be
clear.
on Lenovo M710 and lot of others PC , we use a FAI server to install
Debian jessie and stretch, Ubuntu 14.04 ,16.04 and 18.04 ,
Fai server was made from a Debian stretch , using install guide from
fai-project.org .
all is working without problems. (use of kernel 4.9 to pxe boot )
on M710s we have ssd M2 nvme and it's working.
We received a lenovo M720s (core i5 8th , 8GB , ssd M2 nvme ) and it's
not working. During the boot (before fai start), the PC hang.
We try others kernel (from installed PC) 4.15 ( from ubuntu) etn 4.18 (
from stretch backport) , the boot continue but after that the FAI
install do not start because nfs share are read-only.
this is because as Thomas said " the overlayfs kernel module "
The mistake we make is that we just copy vmlinuz and initrd from PC , we
do not use those made by fai-setup .
this morning all is working , actions :
from the stretch server that is used to build fai , edit /etc/fai/NFSROOT
modify section as this :
-------------------------------------
PACKAGES install-norec AMD64
grub-pc
# linux-image-amd64
linux-image-amd64/stretch-backports # if you want to use a newer kernel
-------------------------------------
then
fai-setup -v
in /srv/tftp/fai copy initrd.img-4.18.xxxxxxx and
vmlinuz-4.18.xxxxxxxx to the tftp dir we use on the real FAI server.
in /srv/fai/nfsroot/lib/modules copy the directory 4.18.xxxxxxx to the
directory nfsroot/lib/modules/ on the real FAI server.
on the real FAI server :
add the entry in pxelinux.cfg/default (or other files if you use
include) to use the initrd.img-4.18.xxxxx and vmlinuz-4.18.xxxxxx
--- the entry for us ----
label FAI-18.04-LTS-2
MENU LABEL PLX-UBUNTU 18.04 M720s
4.18.0-0.bpo.1-amd64 nooptions (En cours de test)
kernel Fai/vmlinuz-4.18.0-0.bpo.1-amd64
append
initrd=Fai/initrd.img-4.18.0-0.bpo.1-amd64 ip=dhcp root=/dev/nfs
nfsroot=10.91.7.21:/u1/DATA04/Fai/FAI-5.5/nfsroot rootovl
FAI_FLAGS=verbose,sshd,createvt
FAI_CONFIG_SRC=nfs://10.91.7.21/u1/DATA04/Fai/FAI-5.5/config
FAI_CHOIX=UB_18_04 FAI_LANG=FRENCH FAI_ACTION=install ipv6.disable=1
----------------------------
and it's working
Thanks a lot to Thomas who point us to the solution.
Regards.
Nicolas (sorry for bad english )
Le 22/11/2018 à 22:28, Thomas Lange a écrit :
On Fri, 16 Nov 2018 16:07:33 +0100, Nicolas Renault - OPENinfo
<nicolas.rena...@openinfo.fr> said:
> I forget to add lib/modules/4.15.0-29-generic to the nfsroot.
> now final problems ( I think) :
> the FAI cannot create /tmp/fai and /target filesystem is read only
Please check if the Ubuntu kernel 4.15 also includes the overlayfs
kernel module. FAI needs this but I'm not sure if Ubuntu supports this.
