[CentOS] intel_iommu=on => No root device found
yinyang at eburg.com
Wed Jan 30 19:51:58 UTC 2013
On 01/29/2013 11:35 PM, Nils Caspar wrote:
> I can not see a 05:01.0 using lspci. There is however 05:0e.0, which
> is the RAID controller (Adaptec RAID 3405). It's kind of a critical
> component, so I can not disable it. ;) Does this mean, it's
> impossible to make IOMMU work on this machine?
Try booting the system without intel_iommu=on, but with the IOMMU
enabled in the bios. Something has to be at 05:01.0. Do you see any
Ricoh devices anywhere in lspci output?
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