We can perform a "Reverse" bisect to identify the commit that fixes this bug in 4.11.0-1.6. It is easiest to bisect the mainline kernel. Per the description, 4.11 final works. Can you test the following two kernels?
v4.10 Final: https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.10/ v4.11-rc1: https://kernel.ubuntu.com/~kernel-ppa/mainline/v4.11-rc1/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1809168 Title: FIPS and Ubuntu standard kernels prior to 4.11.0 won't boot; root device not found To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1809168/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs