--- a/etc/bootstrap.conf    2018-07-12 10:18:54.000000000 -0700

+++ b/etc/bootstrap.conf    2018-07-12 10:33:29.000000000 -0700

@@ -32,6 +32,10 @@

 modprobe += xhci-hcd, sl811-hcd, sd_mod

 # modprobe += ib_ipoib

+# support USB and SoftIron network devices

+modprobe += xhci_pci, usbcore, libphy, mii, usbnet, asix

+modprobe += amd-xgbe

+

 #OpenHPC additions for SLES12

 drivers += af_packet, dns_resolver, auth_rpcgss, lockd, sunrpc

 drivers += dm_mod, dcdbas, dell_rbu, ipmi_msghandler, shpchp, ehci_pci

​