Public bug reported: This is on a Hewlett-Packard ProLiant DL380 G7, with a Smart Array P410i RAID controller containing a RAID 1+0 array of four SATA hard drives.
It's running Ubuntu 16.04 with the linux-image-generic-hwe-16.04-edge packages installed. The root partition consists of a simple ext4 filesystem on /dev/sda1, which is on the RAID array There is a more complex secondary mount involving mdraid and bcache intended to be mounted at /srv - but we're seeing problems before that comes into play. Booting into the last 4.13 kernel (4.13.0-39-generic) works fine. Booting into the latest 4.15 kernel (4.15.0-15-generic) results in the root device not being found, and a stacktrace before an initramfs prompt: https://pastebin.ubuntu.com/p/JnTXQ5YP9W/ ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/bugs/1766770/+attachment/5126846/+files/lspci-vnvn.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1766770 Title: 4.15.0-15-generic can't find root device To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1766770/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
