WOL Firmware Linux Kernel Breaks - Power pulled or boot to windows fixes

[Gael]

@george1421 Contrôleur Realtek PCIe GBE Family
PCI\VEN_10EC&DEV_8168&SUBSYS_085C1028&REV_15\4&1285CEFC&0&00E0
PCI\VEN_10EC&DEV_8168&SUBSYS_085C1028&REV_15
PCI\VEN_10EC&DEV_8168&SUBSYS_085C1028
PCI\VEN_10EC&DEV_8168&CC_020000
PCI\VEN_10EC&DEV_8168&CC_0200
PCI\VEN_10EC&DEV_8168&REV_15
PCI\VEN_10EC&DEV_8168
PCI\VEN_10EC&CC_020000
PCI\VEN_10EC&CC_0200
PCI\VEN_10EC
PCI\CC_020000
PCI\CC_0200

[Gael]

@george1421 Very sorry to forgot tell the kernel update part.
We updated to 5.1.16 because we will shortly receive new DELL optiplex 3070 that have NvMe SSD.

[george1421]

@Gael So at this point you can make a decision.

You have kernels 5.x and 4.x. Pick one to keep as bzImage (assuming 5.x). Rename the other as bzImage4.19.64. Then for all of the 3060s you have on your campus add in bzImage4.19.64 into the kernel field on the host definition for each system. That way when you deploy to the 3060s it will use the older kernel. If you have a lot of machines you can use the fog group setting to change all in the group all at once.

For reference the device [10EC:8168] is a Realtek 8169/8168/8101/8125 nic.

[Gael]

This post is deleted!

[Gael]

@george1421 @Sebastian-Roth

Ok,

All is ok with kernel 4.19.64

Very thank for you help

[Tom Elliott]

@Gael et al.

I’m post a more descriptive post to summarize what the issue is. I don’t know how to fix (so I’ll start there.)

TL;DR;

Linux Kernel is putting a volatile Firmware on the NIC. This happens when FOS loads and the kernel begins associating the drivers. On restart, the firmware is still existing on the NIC from the Kernel. When Windows Boots, it re-flashes the volatile firmware so subsequent elements will work. Or a full power pull will do too (completely cold boot.)

Basis:

This particular issue, is due to Linux Kernel having a firmware defined for the NIC. This is volatile. This means when power is pulled, the firmware will no longer be present and normal actions will work properly.

While the machine is in FOS, the linux kernel hands it a temporary Firmware File and this is what’s causing the strangeness with the NIC.

Pulling the power cord causes the firmware to wipe. Similarly, if booting to Windows immediately after, and then powering off the machine, it should WOL. This is because Windows has a FW being applied when it loads, overwriting whatever the Linux Kernel pushed.