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I am attempting to fix an OS drive that had some problems after installing updates. The hard drive is currently not bootable. My main goal right now is just to get some data off this drive.

I have a live CD which I am able to boot from when the hard drive is not attached. When I attach the hard drive however I get an error message after clicking "Try Ubunutu before installing".

The error message looks like this:

[    14.071718] ata2: COMRESET failed (errno=-16)
[    24.087575] ata2: COMRESET failed (errno=-16)

BusyBox v1.22.1 (Ubuntu 1:1.22.0-8ubunutu1) built-in shell (ash)

(initramfs) Unable to find a medium containing a live file system

Any thoughts on how I can get into this hard drive or what is keeping the Live CD from booting properly when the hard drive is connected?

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  • Could you put the hard drive in an external USB enclosure then plug the drive in after "Try Ubuntu" is booted up?
    – Terrance
    May 6, 2015 at 16:49
  • Unfortunately I do not have one, but if I don't find any other ideas I will go get one.
    – tgrosinger
    May 6, 2015 at 16:49
  • Also, you might need to go to your BIOS and change the SATA controller from IDE to AHCI.
    – Terrance
    May 6, 2015 at 16:54
  • Already done. Thank you for the idea though.
    – tgrosinger
    May 6, 2015 at 17:10
  • Most BIOSes support SATA hot-unplugging/hot-plugging, check if that's the case for your BIOS
    – kos
    May 6, 2015 at 17:10

2 Answers 2

Reset to default
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ACPI needs to be turned off during boot. When booting to the LiveCD, before selecting Try Ubuntu without installing, press the F6 key for Other Options and select acpi=off. Press ESC to exit the Other Options menu, and press Enter to continue the boot.

For further help about selecting Other Options from a live boot, refer to https://help.ubuntu.com/community/BootOptions

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Before chosing "Try ubuntu without installing" press the letter's e key to edit the boot option. In the longest line add --noacpi and press F10. The LiveCD will boot fine.

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