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Every time I try to boot after installing Ubuntu I get "read error" and nothing else.

I was able to get into GRUB boot manager a couple of times randomly, but I haven't been able to in a while. I'm not sure why it would occasionally work.

Specs:

  • mobo: Gigabyte z68apd3
  • CPU: i3 3240
  • HDD: 250 GB SATA WD
  • GPU: Nvidia 550 ti
  • RAM: 8GB
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  • I bet that it is an issue with your HDD.
    – Lucio
    May 20, 2014 at 3:15

2 Answers 2

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The operating system was installed via UEFI (on the dvd) onto a system running with BIOS (not UEFI compatible). When I upgraded the BIOS firmware to a UEFI version, I fixed the problem entirely.

PLease note that I did reinstall the OS in legacy mode (BIOS) and still was unable to boot. It was only when I upgraded the motherboard to UEFI that I was able to boot into the OS.

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The fact that only works randomly and under certain conditions indicates a hardware problem or that the bootloader (GRUB) sectors are damaged. I would recommend using a live cd to do a backup of all your important files and try to install again. If you still have problems, then replace the Hard Disk.

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  • ive reinstalled it many times.
    – user283352
    May 20, 2014 at 19:27
  • ive also tried installing on another hard disk - im having the same problem with "read error"
    – user283352
    May 20, 2014 at 19:27
  • I have a boot repair error dialog @ paste.ubuntu.com/7494410
    – user283352
    May 20, 2014 at 19:37
  • @user283352 have you tried the same disk but in another system/mother board?
    – Braiam
    May 20, 2014 at 19:45
  • i may have fixed the problem. i updated the BIOS to UEFI (it finally worked - i was having trouble updating it) and now its booting every time. even though I had installed ubuntu in legacy mode.
    – user283352
    May 20, 2014 at 21:51

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