I've installed ubuntu-desktop on Ubuntu 16.04 Gnome and I picked lightdm and now once I restart, I get this error message when I press CTRL + ALT + F2:
A start job is running for Hold until boot process finishes up (Xmin Xs/no limit)
This goes on for 20 minutes+. What do I do to fix this problem or even troubleshoot?
Best Answer
You can fix this in following way, it worked for me. FYI : I had upgraded from 14.04 to 16.04.
Go in your safe mode by hitting SHIFT key or ESC. select networking , then drop to root prompt. Then run following commands.
Now, reboot,
When you reboot, still you may get black or purple screen,
Press
Ctrl+Alt+F1
and login with your username and password.Then run following commands.
GDM ie Gnome display manager was also causing problems for me, so following step was essential for me
I switched to lightdm from gdm3 as display manager.
When you are prompted, select default display manager as lightdm
Now I was back with desktop , without dash or unity but only icons and wallpaper. now run this.
Now, reboot after this.
The desktop is back!
now, you can install intel graphic drivers again,
Reboot now. Its done!