I get the same or very similar behaviour running Kubuntu 15.10 running under VMWare Fusion on a Mac. After doing a sudo apt-get dist-upgrade the vm fails to boot, getting stuck on the boot logo. Hitting escape right after the machine starts shows me the boot log, and it gets wedged on the line "starting terminate plymouth boot screen", indicating to me that perhaps it is video related.
I have reproduced this twice by taking a copy of another VM and performing the same update. Once wedged, no combination of keys has any effect, and I'm unable to boot to a console because I don't get a grub menu on boot (it's in quiet mode by default?). The HD is not encrypted, but one home directory is encrypted with ecryptfs. Being a bit of a noob, I was unable to rollback to previous kernel version (not sure how to do it if I can't get to a console), but I was able to get my data from the volume and provision another VM. I'll try provisioning a fresh VM from 15.10 iso to see if it is easily reproduced, or if there is something particular about my install. -- 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/1548985 Title: After linux kernel update system won't boot Status in linux package in Ubuntu: Incomplete Status in linux source package in Wily: Incomplete Bug description: Whenever I try updating packages listed bellow via Software Updater, Ubuntu gets stuck on purple screen after restart. No key combination seems to do anything. I can login to desktop only via recovery and then normal boot option. I'm using Ubuntu 15.10. linux-generic installed version 4.2.0.16.18 available version 4.2.0.30.33 linux-firmware Installed version: 1.149 Available version: 1.149.3 linux-headers-generic Installed version: 4.2.0.16.18 Available version: 4.2.0.30.33 linux-image-generic Installed version: 4.2.0.16.18 Available version: 4.2.0.30.33 linux-headers-4.2.0-30 Installed version: None Available version: 4.2.0-30.35 linux-image-extra-4.2.0-30-generic Installed version: None Available version: 4.2.0-30.35 linux-libc-dev Installed version: 4.2.0-16.19 Available version: 4.2.0-30.35 linux-headers-4.2.0-30-generic Installed version: None Available version: 4.2.0-30.35 linux-image-4.2.0-30-generic Installed version: None Available version: 4.2.0-30.35 I'm not sure if all of them seams to cause the problem. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1548985/+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
