I have a Dell PowerEdge 1800 with Dell CERC 1.5/6ch RAID controller in it. Everything worked fine under Ubuntu 14.04.1. When I upgraded to 16.04.1 the system won't boot. It can't find the root filesystem. I see errors about host adapter dead on the screen many times. This is with kernel 4.4.0-57 and with 4.8.0-32. When I switch back to kernel 3.13.0-105 the system boots just fine.
Using intel_iommu=on doesn't help. I have mptbios 5.06.04. The CERC card says bios version 4.1-0 [Build 7403] I can't figure out how to upgrade the firmware or BIOS on the system from Ubuntu either. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1552551 Title: Dell CERC Adapter hangs temporarily until reset. REGRESSION To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1552551/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
