So here is the problem. I have a packard bell desktop that had windows 8 installed but not really working. Long story short: I was installing xubuntu 18.04 when electricity went down.

When I was able to turn on the computer, this error showed up. I found some info online about the fact that I needed the mmx64.efi file hence I downloaded the latest version of xubuntu, i.e. 19.10, that has it. I used etcher to put the iso into a working USB and then I started the installation again.

Now it has been 24 hours of something. The installation is not stuck since the terminal from the installation window is sending messages but still I believe something is wrong.

I found this tutorial but I am unsure of what to do now. Should I restart the installation or should I wait? Any clues?

EDIT: I forgot to mention that I wanted a fresh install, so I choose to let xubuntu erase the disk and partition it accordingly to its needs.

  • The average installation time for 18.04 (I think the stats were for) was ~17 minutes, so it feels like something is wrong with your install. Yes speed varies on machine resources, but no 24hrs+ Did you verify your download? (tutorials.ubuntu.com/tutorial/tutorial-how-to-verify-ubuntu#0) and then write to media (help.ubuntu.com/community/Installation/CDIntegrityCheck) as otherwise you need to check logs to ensure squashfs errors aren't occurring which would explain a super-slow install (using "Check disc for defects" is far faster & easier!) – guiverc Dec 24 '19 at 12:21
  • @guiverc, done everything! – gabt Dec 25 '19 at 18:35

ok, I did it. Basically I had to partition the system manually, instead of let Xubuntu doing it.

I followed the partition scheme that I found here and now everything works fine.

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