In any case usually when the laptop shuts off while in the middle of an update it screws up the operating system.You are going to have to re-install the old OS from the laptop's recovery partition. During the install step, I accidentally lost power to my laptop (the power cable came unplugged) and it shut down.Whenever I go to boot now, I can select my install via Grub and it loads up to where the sign-in should happen, but I get a display that looks like what you see as soon as you shut down.
I'd also like to know how to switch to 12.04 in case of trouble. If the recovery mode is also broken, you could try booting off a live cd and then chroot'ing into your hard drive installation and performing the above steps.
It looks like it locks after checking for the battery.
Is there anyway, with or without Live media, to restore my machine's install/update to 12.04 but still keep my settings/applications/files?
While these updates are being installed it recommends you don't shutdown the computer.
But my boyfriend shut my laptop lid without knowing.
i am currently running windows 8.1 Pro and when i started the upgrade to windows 10, everytime it reaches the 30% part where it finishes the copying files part, and it restarts, my computer shuts down completely like *poof* When I put my computer back on, and it says attempting to recover installation, it shuts down AGAIN like *poof* Then when I restart it again, it just goes back to "restoring previous windows" and it restarts then my computer shuts off again like *poof* Then when i put it back on, it comes on normally, and says failed to install windows 10. Thank You Hey Josiah, sorry I can't help, but I signed up to say the same thing is happening to me.