Tonight I moved my unRAID system back to my old hardware (Supermicro X9SCM-F-O) and after the migration could not get a network connection.  Checked the BIOS and all NICs were active along with the IPMI.  The only way I could get the array to come online was to enable bonding of the network connections. 

I'd like to avoid this in the future but can not figure out what the issue is.  It seems to me as if unRAID is seeing eth0 as either the IPMI NIC or something else altogether.

Before enabling the bonding I was getting an "eth0: device not found" error and the mac address was/is not showing up under eth0.

I've attached a syslog which shows eth0 a few times and then the "device not found" error as well.  I don't know enough to further troubleshoot but hoping someone can help me.

Thanks,

 

edit: sorry, forgot to mention I'm on 6.2.0 rc1.

cruzunraid-syslog-20160711-2133.zip

Did you switch the Cat5 cable between the two RJ-45 ports?  unRAID will only recognize and use one of the ports by default and if the cable is in the other port, you will get exactly the condition that you describe. 

Yes, I've had all ports wired and have switched them all around. Tried with only one oin each port. Basically everything possible.

1. Delete the file network.cfg on your flash drive

2. If you have anything in the go file to configure ethernet ports, take it out

3. Restart your system, by default it will allow any port to use (must run v6.2-rc1)

 

1. Delete the file network.cfg on your flash drive

2. If you have anything in the go file to configure ethernet ports, take it out

3. Restart your system, by default it will allow any port to use (must run v6.2-rc1)

That seems to have fixed it, thank you very much for your help!