Crazy boot and reboot times after upgrading to ubuntu 15.04 (a stop/start job is running for session c2)

Solution 1:

I managed to fix this by rolling back from systemd to upstart. More info here:

https://wiki.ubuntu.com/SystemdForUpstartUsers

Permanent switch back to upstart
Install the upstart-sysv package, which will remove ubuntu-standard 
and systemd-sysv (but should not remove anything else -- if it does, yell!), 
and run sudo update-initramfs -u. After that, grub's "Advanced options" 
menu will have a corresponding "Ubuntu, with Linux ... (systemd)" 
entry where you can do an one-time boot with systemd.

If you want to switch back to systemd, install the systemd-sysv and ubuntu-standard packages.

Solution 2:

I had the same problem in my Manjaro, searching I found a post in a reddit forum of Arch Linux.

Here is the solution that works for me https://www.reddit.com/r/archlinux/comments/4bawf7/a_stop_job_is_running_for_session_c2_of_user/d17th3u

You need to ubuntulize it:

Install watchdog

# pacman -S watchdog

And then start the service at boot:

# systemctl enable watchdog.service

Start the service to don't see the message any more

# systemctl start watchdog.service

I create a gist for this https://gist.github.com/dianjuar/98d02af4050dc2df8ae6f18695d44ca3