@bleader I've done exactly the same on my ThinkSystem SR665 V3, BMC Version
3.20 (Build ID: KAX334O), UEFI Version 4.20 (Build ID: KAE120J), LXPM Version 4.12 (Build ID: GNL114G) and it worked;

# Found which driver to blacklist from kernel init
fgrep i2c /boot/System.map-4.19.0+1 | grep init
[10:10 xcp-ng-host1 ~]# fgrep i2c /boot/System.map-4.19.0+1 | grep init
ffffffff815172f0 T drm_i2c_encoder_init
ffffffff815574c0 T __regmap_init_i2c
ffffffff81557510 T __devm_regmap_init_i2c
ffffffff815d0700 t i2c_dw_init_master
ffffffff815d14f0 t i2c_dw_init_slave
ffffffff81ea9b40 r __ksymtab_drm_i2c_encoder_init
ffffffff81eb0570 r __ksymtab___devm_regmap_init_i2c
ffffffff81eb0838 r __ksymtab___regmap_init_i2c
ffffffff81edc1a9 r __kstrtab_drm_i2c_encoder_init
ffffffff81edffcd r __kstrtab___devm_regmap_init_i2c
ffffffff81edffe4 r __kstrtab___regmap_init_i2c
ffffffff8248156d t i2c_init
ffffffff82481b65 t dw_i2c_init_driver
ffffffff8255fe48 t __initcall_i2c_init2
ffffffff8255ffa8 t __initcall_dw_i2c_init_driver4

In /etc/grub-efi.cfg I added initcall_blacklist=dw_i2c_init_driver and ran grub-mkconfig then rebooted.

terminal_input serial console
terminal_output serial console
set default=0
set timeout=5
menuentry 'XCP-ng' {
        search --label --set root root-pxdcvt
        multiboot2 /boot/xen.gz dom0_mem=7568M,max:7568M watchdog ucode=scan dom0_max_vcpus=1-16 crashkernel=256M,below=4G console=vga vga=mode-0x0311
        module2 /boot/vmlinuz-4.19-xen root=LABEL=root-pxdcvt ro nolvm hpet=disable rd.auto console=hvc0 console=tty0 quiet vga=785 splash plymouth.ignore-serial-consoles initcall_blacklist=dw_i2c_init_driver
        module2 /boot/initrd-4.19-xen.img
}

Run grub-mkconfig then rebooted

grub-mkconfig

I first checked the current system temperatures and fan speeds (configured at fix RPM);

[10:17 xcp-ng-host1 ~]# ipmitool sdr | grep -i temp
Ambient Temp     | 30 degrees C      | ok
Exhaust Temp     | 34 degrees C      | ok
CPU 1 Temp       | 39 degrees C      | ok
CPU 2 Temp       | no reading        | ns
DIMM 1 Temp      | no reading        | ns
DIMM 2 Temp      | no reading        | ns
DIMM 3 Temp      | no reading        | ns
DIMM 4 Temp      | no reading        | ns
DIMM 5 Temp      | no reading        | ns
DIMM 6 Temp      | 0 degrees C       | ok
DIMM 7 Temp      | 0 degrees C       | ok
DIMM 8 Temp      | no reading        | ns
DIMM 9 Temp      | no reading        | ns
DIMM 10 Temp     | no reading        | ns
DIMM 11 Temp     | no reading        | ns
DIMM 12 Temp     | no reading        | ns
DIMM 13 Temp     | no reading        | ns
DIMM 14 Temp     | no reading        | ns
DIMM 15 Temp     | no reading        | ns
DIMM 16 Temp     | no reading        | ns
DIMM 17 Temp     | no reading        | ns
DIMM 18 Temp     | no reading        | ns
DIMM 19 Temp     | no reading        | ns
DIMM 20 Temp     | no reading        | ns
DIMM 21 Temp     | no reading        | ns
DIMM 22 Temp     | no reading        | ns
DIMM 23 Temp     | no reading        | ns
DIMM 24 Temp     | no reading        | ns
PCIe 1 OverTemp  | 0x00              | ok
PCIe 2 OverTemp  | 0x00              | ok
PCIe 3 OverTemp  | 0x00              | ok
OCP OverTemp     | 0x00              | ok
[10:18 xcp-ng-host1 ~]# ipmitool sdr | grep -i fan
Fan Mismatch     | 0x00              | ok
Fan 1 Front Tach | 6642 RPM          | ok
Fan 2 Front Tach | 6642 RPM          | ok
Fan 3 Front Tach | 6724 RPM          | ok
Fan 4 Front Tach | 6560 RPM          | ok
Fan 5 Front Tach | 6642 RPM          | ok
Fan 6 Tach       | 0 RPM             | ok
Fan 1 Rear Tach  | 6225 RPM          | ok
Fan 2 Rear Tach  | 6150 RPM          | ok
Fan 3 Rear Tach  | 6300 RPM          | ok
Fan 4 Rear Tach  | 6150 RPM          | ok
Fan 5 Rear Tach  | 6300 RPM          | ok
Sys Fan Pwr      | 18 Watts          | ok

I followed by a reboot of the Xclarity BMC controller and the new readings are;

[10:23 xcp-ng-host1 ~]# ipmitool sdr | grep -i temp
Ambient Temp     | 30 degrees C      | ok
Exhaust Temp     | 34 degrees C      | ok
CPU 1 Temp       | 40 degrees C      | ok
CPU 2 Temp       | no reading        | ns
DIMM 1 Temp      | no reading        | ns
DIMM 2 Temp      | no reading        | ns
DIMM 3 Temp      | no reading        | ns
DIMM 4 Temp      | no reading        | ns
DIMM 5 Temp      | no reading        | ns
DIMM 6 Temp      | 38 degrees C      | ok
DIMM 7 Temp      | 37 degrees C      | ok
DIMM 8 Temp      | no reading        | ns
DIMM 9 Temp      | no reading        | ns
DIMM 10 Temp     | no reading        | ns
DIMM 11 Temp     | no reading        | ns
DIMM 12 Temp     | no reading        | ns
DIMM 13 Temp     | no reading        | ns
DIMM 14 Temp     | no reading        | ns
DIMM 15 Temp     | no reading        | ns
DIMM 16 Temp     | no reading        | ns
DIMM 17 Temp     | no reading        | ns
DIMM 18 Temp     | no reading        | ns
DIMM 19 Temp     | no reading        | ns
DIMM 20 Temp     | no reading        | ns
DIMM 21 Temp     | no reading        | ns
DIMM 22 Temp     | no reading        | ns
DIMM 23 Temp     | no reading        | ns
DIMM 24 Temp     | no reading        | ns
PCIe 1 OverTemp  | 0x00              | ok
PCIe 2 OverTemp  | 0x00              | ok
PCIe 3 OverTemp  | 0x00              | ok
OCP OverTemp     | 0x00              | ok
[10:26 xcp-ng-host1 ~]# ipmitool sdr | grep -i fan
Fan Mismatch     | 0x00              | ok
Fan 1 Front Tach | 8528 RPM          | ok
Fan 2 Front Tach | 8446 RPM          | ok
Fan 3 Front Tach | 8446 RPM          | ok
Fan 4 Front Tach | 8610 RPM          | ok
Fan 5 Front Tach | 8446 RPM          | ok
Fan 6 Tach       | 0 RPM             | ok
Fan 1 Rear Tach  | 7950 RPM          | ok
Fan 2 Rear Tach  | 7950 RPM          | ok
Fan 3 Rear Tach  | 8025 RPM          | ok
Fan 4 Rear Tach  | 7950 RPM          | ok
Fan 5 Rear Tach  | 7875 RPM          | ok
Sys Fan Pwr      | 24 Watts          | ok

@RIX_IT I've dropped today a ticket as well, hoping them to realise it would be beneficial for all parties if they could help solving this.

@florent, I had to do the same for Xen Orchestra Community Edition. In my case, config.toml already contained the [authentication] section, so adding a separate config.tokenValidity.toml file did not work.

Instead, I had to modify the existing config.toml located at /opt/xo/xo-server.

In my opinion, it is best to keep defaultTokenValidity set to 30 days as a fallback in case no value is specified. You can then simply increase maxTokenValidity to the duration you prefer.

[authentication]
defaultTokenValidity = '30 days'
# default value of 0.5 years
# comment out and increase to 5 years
#maxTokenValidity = ' 0.5 year'
maxTokenValidity = '5 year'

@olivierlambert is it already known in which update/release this problem will be solved?

@bleader I've done exactly the same on my ThinkSystem SR665 V3, BMC Version
3.20 (Build ID: KAX334O), UEFI Version 4.20 (Build ID: KAE120J), LXPM Version 4.12 (Build ID: GNL114G) and it worked;

# Found which driver to blacklist from kernel init
fgrep i2c /boot/System.map-4.19.0+1 | grep init
[10:10 xcp-ng-host1 ~]# fgrep i2c /boot/System.map-4.19.0+1 | grep init
ffffffff815172f0 T drm_i2c_encoder_init
ffffffff815574c0 T __regmap_init_i2c
ffffffff81557510 T __devm_regmap_init_i2c
ffffffff815d0700 t i2c_dw_init_master
ffffffff815d14f0 t i2c_dw_init_slave
ffffffff81ea9b40 r __ksymtab_drm_i2c_encoder_init
ffffffff81eb0570 r __ksymtab___devm_regmap_init_i2c
ffffffff81eb0838 r __ksymtab___regmap_init_i2c
ffffffff81edc1a9 r __kstrtab_drm_i2c_encoder_init
ffffffff81edffcd r __kstrtab___devm_regmap_init_i2c
ffffffff81edffe4 r __kstrtab___regmap_init_i2c
ffffffff8248156d t i2c_init
ffffffff82481b65 t dw_i2c_init_driver
ffffffff8255fe48 t __initcall_i2c_init2
ffffffff8255ffa8 t __initcall_dw_i2c_init_driver4

In /etc/grub-efi.cfg I added initcall_blacklist=dw_i2c_init_driver and ran grub-mkconfig then rebooted.

terminal_input serial console
terminal_output serial console
set default=0
set timeout=5
menuentry 'XCP-ng' {
        search --label --set root root-pxdcvt
        multiboot2 /boot/xen.gz dom0_mem=7568M,max:7568M watchdog ucode=scan dom0_max_vcpus=1-16 crashkernel=256M,below=4G console=vga vga=mode-0x0311
        module2 /boot/vmlinuz-4.19-xen root=LABEL=root-pxdcvt ro nolvm hpet=disable rd.auto console=hvc0 console=tty0 quiet vga=785 splash plymouth.ignore-serial-consoles initcall_blacklist=dw_i2c_init_driver
        module2 /boot/initrd-4.19-xen.img
}

Run grub-mkconfig then rebooted

grub-mkconfig

I first checked the current system temperatures and fan speeds (configured at fix RPM);

[10:17 xcp-ng-host1 ~]# ipmitool sdr | grep -i temp
Ambient Temp     | 30 degrees C      | ok
Exhaust Temp     | 34 degrees C      | ok
CPU 1 Temp       | 39 degrees C      | ok
CPU 2 Temp       | no reading        | ns
DIMM 1 Temp      | no reading        | ns
DIMM 2 Temp      | no reading        | ns
DIMM 3 Temp      | no reading        | ns
DIMM 4 Temp      | no reading        | ns
DIMM 5 Temp      | no reading        | ns
DIMM 6 Temp      | 0 degrees C       | ok
DIMM 7 Temp      | 0 degrees C       | ok
DIMM 8 Temp      | no reading        | ns
DIMM 9 Temp      | no reading        | ns
DIMM 10 Temp     | no reading        | ns
DIMM 11 Temp     | no reading        | ns
DIMM 12 Temp     | no reading        | ns
DIMM 13 Temp     | no reading        | ns
DIMM 14 Temp     | no reading        | ns
DIMM 15 Temp     | no reading        | ns
DIMM 16 Temp     | no reading        | ns
DIMM 17 Temp     | no reading        | ns
DIMM 18 Temp     | no reading        | ns
DIMM 19 Temp     | no reading        | ns
DIMM 20 Temp     | no reading        | ns
DIMM 21 Temp     | no reading        | ns
DIMM 22 Temp     | no reading        | ns
DIMM 23 Temp     | no reading        | ns
DIMM 24 Temp     | no reading        | ns
PCIe 1 OverTemp  | 0x00              | ok
PCIe 2 OverTemp  | 0x00              | ok
PCIe 3 OverTemp  | 0x00              | ok
OCP OverTemp     | 0x00              | ok
[10:18 xcp-ng-host1 ~]# ipmitool sdr | grep -i fan
Fan Mismatch     | 0x00              | ok
Fan 1 Front Tach | 6642 RPM          | ok
Fan 2 Front Tach | 6642 RPM          | ok
Fan 3 Front Tach | 6724 RPM          | ok
Fan 4 Front Tach | 6560 RPM          | ok
Fan 5 Front Tach | 6642 RPM          | ok
Fan 6 Tach       | 0 RPM             | ok
Fan 1 Rear Tach  | 6225 RPM          | ok
Fan 2 Rear Tach  | 6150 RPM          | ok
Fan 3 Rear Tach  | 6300 RPM          | ok
Fan 4 Rear Tach  | 6150 RPM          | ok
Fan 5 Rear Tach  | 6300 RPM          | ok
Sys Fan Pwr      | 18 Watts          | ok

I followed by a reboot of the Xclarity BMC controller and the new readings are;

[10:23 xcp-ng-host1 ~]# ipmitool sdr | grep -i temp
Ambient Temp     | 30 degrees C      | ok
Exhaust Temp     | 34 degrees C      | ok
CPU 1 Temp       | 40 degrees C      | ok
CPU 2 Temp       | no reading        | ns
DIMM 1 Temp      | no reading        | ns
DIMM 2 Temp      | no reading        | ns
DIMM 3 Temp      | no reading        | ns
DIMM 4 Temp      | no reading        | ns
DIMM 5 Temp      | no reading        | ns
DIMM 6 Temp      | 38 degrees C      | ok
DIMM 7 Temp      | 37 degrees C      | ok
DIMM 8 Temp      | no reading        | ns
DIMM 9 Temp      | no reading        | ns
DIMM 10 Temp     | no reading        | ns
DIMM 11 Temp     | no reading        | ns
DIMM 12 Temp     | no reading        | ns
DIMM 13 Temp     | no reading        | ns
DIMM 14 Temp     | no reading        | ns
DIMM 15 Temp     | no reading        | ns
DIMM 16 Temp     | no reading        | ns
DIMM 17 Temp     | no reading        | ns
DIMM 18 Temp     | no reading        | ns
DIMM 19 Temp     | no reading        | ns
DIMM 20 Temp     | no reading        | ns
DIMM 21 Temp     | no reading        | ns
DIMM 22 Temp     | no reading        | ns
DIMM 23 Temp     | no reading        | ns
DIMM 24 Temp     | no reading        | ns
PCIe 1 OverTemp  | 0x00              | ok
PCIe 2 OverTemp  | 0x00              | ok
PCIe 3 OverTemp  | 0x00              | ok
OCP OverTemp     | 0x00              | ok
[10:26 xcp-ng-host1 ~]# ipmitool sdr | grep -i fan
Fan Mismatch     | 0x00              | ok
Fan 1 Front Tach | 8528 RPM          | ok
Fan 2 Front Tach | 8446 RPM          | ok
Fan 3 Front Tach | 8446 RPM          | ok
Fan 4 Front Tach | 8610 RPM          | ok
Fan 5 Front Tach | 8446 RPM          | ok
Fan 6 Tach       | 0 RPM             | ok
Fan 1 Rear Tach  | 7950 RPM          | ok
Fan 2 Rear Tach  | 7950 RPM          | ok
Fan 3 Rear Tach  | 8025 RPM          | ok
Fan 4 Rear Tach  | 7950 RPM          | ok
Fan 5 Rear Tach  | 7875 RPM          | ok
Sys Fan Pwr      | 24 Watts          | ok

@LennertvdBerg Lenovo didn't want to provide any support. However, they just published a new UEFI/BIOS. Not sure if this is going to fix things;

@RIX_IT I've dropped today a ticket as well, hoping them to realise it would be beneficial for all parties if they could help solving this.

@ThierryEscande Has anyone made any progress on this? @Riven you got contact details at Lenovo for contacting regarding this?

@stormi I’ll be back on Wednesday (just short holiday now), I’ll try your advice and see how it works

@stormi I thought it’s convenient to have all in one as it’s easy for installation. But I can check this options as well. So you recommend to extract the iso to a separate USB drive and load drivers from there?

@olivierlambert would there be a way after GRUB to walk step by step through the boot and see where it goes wrong?

@stormi Hi, some help is welcome Still haven’t found a solutions.