Testing in comment #5 confirmed this bug was only happening with the upstream kernels and not Ubuntu kernels. Is that still the case with Xenial?
Also, can you confirm the patch in comment #26 is needed in Yakkety and Zesty to get 32 bit Ubuntu VMs to boot? If so, I will submit it for SRU to whatever releases need it. ** No longer affects: linux (Ubuntu Xenial) -- 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/1555786 Title: [Hyper-V] VM with ubuntu 32bit with linux-next does not boot Status in linux package in Ubuntu: In Progress Status in linux source package in Yakkety: In Progress Status in linux source package in Zesty: In Progress Bug description: We identified that at least ubuntu (let's take 15.10) does not boot if installed in the 32bit architecture, and using the linux-next upstream kernel 4.5 on it. This has been seen on other distributions as well. We took both the official linux-next branch from kernel.org and the one from kernel.ubuntu.com v4.5-rc7. For the compilation process we went either with the 4.2 kernel config file from the installed running kernel, and also built the config separately. No errors have been encountered during the build or install process of the 4.5 kernel, however at boot, the VM will just hang. There are no call traces or messages at boot to show any pottential issue. Have you seen this on your end when testing the 32bit build? Attaching the full serial log for reference, however I don't see any errors in the kernel boot process. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1555786/+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
