Public bug reported: I tried to upgrade from an up-to-date and working Ubuntu 14.04 to 16.04 using do-release-upgrade. The process seemed to complete successfully except for a couple of errors regarding fcitx packages, which I choose to ignore and fix later.
I then proceeded to reboot, but the system hanged during the shutdown so I decided to hard reboot. However, I was greeted by a kernel panic preceded by straightforward error messages : run-init: /sbin/init: No such file or directory Target filesystem doesn't have requested /sbin/init. run-init: /sbin/init: No such file or directory run-init: /etc/init: Permission denied run-init: /bin/init: No such file or directory /bin/sh: 0: Can't open splash Kernel panic — not syncing: Attempted to kill init! exitcode=0x00007f00 etc. (last two lines mentioned for SEO purposes) Indeed, these files don't exist. It seems /var/log/apt/history.log doesn't log "do-release-upgrade", so I have no clue about what went wrong during the upgrade. FWIW, I can keep the laptop in this state for a couple of days and check or try whatever is proposed (though I'd rather avoid involving a live CD or similar). ** Affects: ubuntu Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1652462 Title: No init after do-release-upgrade from 14.04 to 16.04 (kernel panic) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1652462/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs