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Dell Precision T5500 onboard NIC not detected

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I was looking to test the waters and switch from Windows to Unraid for my NAS/Minecraft Server/Media server Dell T5500 workstation. I have tried both the stable release 6.10.2 as well Next build 6.10.2-rc3. I have tried making the USB drive both manually setting the IP info like I normally would for a headless system, as well as letting it use DHCP. No matter what configuration of making the USB drive I try, I always receive a error:

Device eth0 does not exist

This machine boots into Windows and has internet connectivity if I remove the USB drive. The onboard NIC is a Broadcom NetXtreme 57xx gigabit controller as reported by Windows device manager. 

I looked at my router dashboard to see the list of connected devices and there is no sign of it on the long list of devices. 

I did upload the diagnostic zip file if that is required to get a better idea of what I need to do in order to fix it so I can make the switch from Windows. 

tower-diagnostics-20220606-1727.zip

Solved by itimpi

  • Community Expert
  • Solution

Looks like you might have a NIC that is currently being blacklisted as described in the 6.10.2 Release Notes.  As far as know there is no Dell server reported so fa that suffers from the data corruption issue so it should be safe to take the steps described there to un-blacklist the NIC. An alternative would be to run the earlier 6.9.2 release.

  • Author
30 minutes ago, itimpi said:

Looks like you might have a NIC that is currently being blacklisted as described in the 6.10.2 Release Notes.  As far as know there is no Dell server reported so fa that suffers from the data corruption issue so it should be safe to take the steps described there to un-blacklist the NIC. An alternative would be to run the earlier 6.9.2 release.

Thank you very much for this quick solution! Creating the blank file now has me able to load the web ui and start tinkering with it.

Is there a list of NICs that are blacklisted? This Dell server is the machine I was previously using for most of my home lab. I wanted to use it as a test dummy, before making the switch on my beefier server I currently use which has dual Intel I350 Gigabit controllers in a Lenovo ThinkServer. I ended up needing more RAM than the Dell machine could handle without spending a small fortune on large capacity DDR3 ECC sticks. 

  • Community Expert
2 hours ago, Nocturnal4Life said:

is there a list of NICs that are blacklisted?

At the moment it is only NICs that uses the tg3 NIC driver (Broadcom being the only brand I have heard of) that is blacklisted  and even then it only seems to matter on some servers (primarily HP ones).

 

This was an emergency fix bought out when the 6.10.0 Unraid release recently came out and it was discovered at that point (it did not occur in the earlier 6.9.2 Unraid release).  It is not known at this moment the exact cause - it could be any combination of BIOS, Linux kernel, NIC driver but is under further investigation.  The fault is not Unraid specific as it has been reported on multiple Linux distributions.  I expect that once the root cause is identified then a mitigation will be released in an Unraid 6.10.x point release, but since Dell servers do not seem to be affected you are OK to proceed regardless.

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