Correct, the v4.4-wily kernel is an upstream version of the kernel with no Ubuntu customization. That is the reason we need to go back in time and test the older Ubuntu kernels to find the specific version when the bug was introduced. That will allow us to bisect and find the exact commit that caused the regression.
Can you test test the 4.2.0-16.19 kernel: https://launchpad.net/~canonical-kernel-team/+archive/ubuntu/ppa/+build/8099558 That is the earliest pre-built Xenial kernel, so if that kernel has the bug, I'll have to build older versions. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1656605 Title: No server console display after Grub screen until fully booted and pressing Ctrl-Alt-F1/8 Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: Today I did our first production 14.04 to 16.04 LTS server upgrade. I had done so a couple of times successfully on test server machines. Upon booting up on the 16.04 system/kernel, after the Grub screen the server console screen is completely blank. Someone suggested using Ctrl-Alt-F1/8, and indeed pressing those hotkeys does toggle through the tty screens. There is no boot process logged to the server console screen. I did have the last 14.04 kernel yet installed, so selected that one from the Grub menu. Booting that 14.04 kernel, then server console display behaves normally. So I suspected perhaps a bum install of the 16.04 kernel. I used the following commands while booted to the 14.04 kernel to reinstall the 16.04 kernel: $ sudo dpkg -P linux-image-4.4.0-59-generic linux-image-extra-4.4.0-59-generic linux-image-generic $ sudo apt-get install linux-image-generic Same results booting the 16.04 kernel after those steps. Hardware spec is an Intel Atom D945GCLF2D boxed motherboard with Intel Atom 330 Dual-Core processor and 2GB RAM. RAID is 3Ware SATA RAID. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1656605/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
