mwf369 Posted January 30, 2020 Share Posted January 30, 2020 (edited) I have UnRAID running on a Gigabyte GA-990FXA-UD3 motherboard which has onboard USB 2.0 and 3.0 controllers. If I connect an external USB 3.0 hard drive to one of the USB 2.0 ports, the system recognizes it almost immediately and it is available to assign to a VM. If I connect the same drive to a USB 3.0 port, it is never recognized and I cannot use it. I have the VM set to use the 3.0 (qemu XHCI) USB controller. I can see the controller is recognized by the system when I run "lspci | grep USB", but the external drive doesn't show up in the output of the lsusb command. Am I missing something? How can I get this to work? Edited February 2, 2020 by mwf369 Corrected typo on MB model; UD3 not UD2 Quote Link to comment
Frank1940 Posted January 30, 2020 Share Posted January 30, 2020 One place to start on this would be to see if you have the latest BIOS installed. You might also google and see if others are having issues with USB3 ports on these MB's. Quote Link to comment
mwf369 Posted February 3, 2020 Author Share Posted February 3, 2020 I checked, and it is running the latest BIOS - and by latest, that's 2016. Is there a detailed post on troubleshooting USB devices in Unraid somewhere? Quote Link to comment
Frank1940 Posted February 3, 2020 Share Posted February 3, 2020 take a look at the top rated review on this board on Amazon: https://www.amazon.com/GIGABYTE-GA-990FXA-UD3-990FX-SATA-Motherboard/dp/B00545BZOG/ref=sr_1_2?keywords=GA-990FXA-UD3&qid=1580758862&sr=8-2 (I would quote it but I am not quite sure of the legality of doing so...) Not sure if this issue was ever addressed. Quote Link to comment
mwf369 Posted February 9, 2020 Author Share Posted February 9, 2020 Great find! Thank you! Follow up question, if you don't mind: Step 2 says to edit /etc/default/grub and add GRUB_CMDLINE_LINUX="iommu=soft". From what I can tell, UnRAID doesn't use grub. What is the equivalent I should be looking for? Where should this edit be made? Quote Link to comment
Frank1940 Posted February 9, 2020 Share Posted February 9, 2020 On 2/3/2020 at 2:46 PM, Frank1940 said: take a look at the top rated review on this board on Amazon: https://www.amazon.com/GIGABYTE-GA-990FXA-UD3-990FX-SATA-Motherboard/dp/B00545BZOG/ref=sr_1_2?keywords=GA-990FXA-UD3&qid=1580758862&sr=8-2 17 minutes ago, mwf369 said: Step 2 says to edit /etc/default/grub and add GRUB_CMDLINE_LINUX="iommu=soft". From what I can tell, UnRAID doesn't use grub. What is the equivalent I should be looking for? Where should this edit be made? @limetech, could you help @mwf369 with this? 1 Quote Link to comment
Squid Posted February 9, 2020 Share Posted February 9, 2020 21 minutes ago, mwf369 said: Where should this edit be made? Probably syslinux.cfg (Main, Boot, click on Flash, then syslinux) and you'd be adding iommu=soft to the append line 1 Quote Link to comment
mwf369 Posted February 10, 2020 Author Share Posted February 10, 2020 That did the trick! Thank you both for your help! Quote Link to comment
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