Does this also happen if you boot with upstart? (You can choose that from the grub boot menu under "Advanced options").
Please also boot without "quiet splash $vt_handoff" -- does your computer boot then? If so, it's a graphics/plymouth problem, if not this should show where it's hanging. /usr/share/doc/systemd/README.Debian explains how to run the debug shell -- please do a boot with "systemd.debug-shell", and when it hangs switch to it with Ctrl-Alt-F9 and save the output of "systemctl list-jobs" and "journalctl" and attach them here. Thanks! ** Changed in: linux-flo (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-flo in Ubuntu. https://bugs.launchpad.net/bugs/1444070 Title: ubuntu 15.04 hangs at purple scren even with nomodeset Status in linux-flo package in Ubuntu: Incomplete Bug description: After installing Ubuntu 15.04 a few times, I'm always having the same problem, after booting the system several times, it always hangs at plymouth. Before the problem takes place I always notice some flickering on the screen after plymouth The problem persists even with the nomodeset parameter or with recovery mode. I'm using a Acer Asipire V5-552G. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-flo/+bug/1444070/+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