Upgraded to 16.04, cannot boot. Damaged package maybe.
I have a serious problem and I hope someone can help me.
I went to upgrade my Ubuntu 14.04 to 16.04.
It seemed to go smoothly up to the point where it needs to restart.
On the restart, it left a single line of text on a black screen, the last message from fsck , which reads:
/dev/sda5: clean, 2091595/29884416 files, 34448916/119532800 blocks
I am able to get to the Recovery Mode. I ran the "DPKG Repair Broken Packages" option.
At the end, it showed an "Import Error" with a lengthy symbol name and a file name. I could not copy-and-paste this text, so I took a photo of the screen, and saved it in a DropBox, here:
https:/
I presume this is the root cause of the failure.
I am also able to get to a Command Prompt, and have the root password, but I don't know what command to use, (I presume it's a variant of apt-get) and particularly, I don't which package I need and from where.
A little more information, if it might help:
I took a video of the process of running Recovery Mode. After DPKG, I tried "Resume Normal Booting". Most of the items showed a green OK, but the video captured a single FAILED item: Thermal Daemon Service. What the ????? How does that prevent the whole system from starting?
I took a screenshot of the frame that shows it, here:
https:/
Before entering the Recovery Mode menu, there was an error-ish message on the screen, of which I also took a screenshot, here:
https:/
The overall video is here:
https:/
The entire folder can be accessed here:
https:/
Please, any advice?
What command will recover the missing item from the damaged package?
Or: Might there be a way to re-do the upgrade from the Command Prompt?
Finally (in case you're wondering how I'm managing to do this), I first did a test upgrade to a scratch disk on my computer, never expecting that I would end up having to be running off of it. I am able to access my main drive (as a data-object, but not to use it as the O/S nor to access all my apps, saved settings, etc.), so I'm not completely dead-in-the-water, but then, this suggests another question:
Is there a way to do an Ubuntu upgrade on a different drive from the one that's being run? A cross-update, as it were...?
Thanks in advance.
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