Hi Takeo, The error code "-13" means "E1000_ERR_SWFW_SYNC". Does the server work with other STX or CentOS previous? The igb driver is part of CentOS kernel driver, which is 3.10.0-957.12.2 for STX 2.0. Best Regards Shuicheng From: Komiyama, Takeo [mailto:Takeo.Komiyama@windriver.com] Sent: Saturday, September 14, 2019 11:14 PM To: starlingx-discuss@lists.starlingx.io Subject: [Starlingx-discuss] Failed to load igb driver with error 13 for I350 I tried to intall STX 2.0 load to Intel IronPass server ( IvyBridge ). During kernel boot, kernel shows following message. 2019-09-14T13:50:46.273 localhost kernel: info [ 4.341203] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k 2019-09-14T13:50:46.273 localhost kernel: info [ 4.341327] igb: Copyright (c) 2007-2014 Intel Corporation. 2019-09-14T13:50:46.274 localhost kernel: warning [ 4.782342] igb: probe of 0000:09:00.0 failed with error -13 2019-09-14T13:50:46.275 localhost kernel: warning [ 5.256019] igb: probe of 0000:09:00.1 failed with error -13 2019-09-14T13:50:46.275 localhost kernel: warning [ 5.791676] igb: probe of 0000:09:00.2 failed with error -13 2019-09-14T13:50:46.275 localhost kernel: warning [ 6.270393] igb: probe of 0000:09:00.3 failed with error -13 And it failed to create Ethernet interface. IronPass has on-board I350 Quad port NIC and issue occurred there. I also tried to install image to Wildcat Pass server ( Haswell ) , which also have I350 NIC, and everything went well. Does anyone similar issue? Regards, Takeo Komiyama