How do I reverse HW passthrough.

[l0cut15]

HI,

I attempted to pass through my second motherboard NIC to a VM. It didn't go well and the system hung.

After rebooting, none of the NICs work—not the other motherboard or my PCIE Intel NIC. I deleted all of the qumu conf files, but that doesn't help. Does Proxmox save PICE passthrough information somewhere else that I'm missing?

Down and stuck,
Thanks
Brett

 

[Chris]

Hi,
did you maybe blacklist the kernel module to be used by the NIC? Check the contents under /etc/modprobe.d/. Do you have active resource mappings?

 

[l0cut15]

Hi,

I don't see anything blacklisted. I have removed any resource mapping from qemu by removing the VM conf files. lspci shows my intel NIC's and their respective drivers are listed. However, all interfaces are down and I can't bring them up with ifup. dmsesg doesn't show me anything interesting.

is there another way to report on bindings?

 

[l0cut15]

For the record I needed to run a rebuild of initramsfs. I don't know enough about this to understand why but it worked. Thanks Chris!

 

[guruevi]

Did you enable PCIe VFIO in the kernel, in that case, you could have a case where your network ports changed name. You just have to edit /etc/network/interfaces with the updated names.