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Alaiyo
January 10th, 2013, 06:21 AM
I ran a bunch of recommended updates on my Toshiba Satellite C655 earlier today. Thereafter I could not boot my computer at all. It's a dual installation, and I can't boot either Ubuntu 12.04 or Linux Mint 11 Katya. I decided to try a fresh install, tried booting each system from the live CDs, and that failed. I just burned and tried to boot from the Boot-Repair GUI from YannBuntu at http://ubuntuforums.org/showthread.p...7#post10871917, what I got what the following error message at startup:

EDD: Error 0400 reading sector 172696
No DEFAULT or UI configuration directive found!
boot:


The grub is apparently so messed up that I can't boot from anywhere, including the grub> prompt after following the step-by-step instructions in the Ubuntu documentation section. My paths are (hd0, 11). I also tried booting from recovery mode (doesn't work properly), failsafe mode (not installed), nothing has worked. Again, I cannot get in anywhere in order to reach sudo, only grub>. And I can't boot from any live CD, including the Boot-Repair GUI. I've been searching the forums all day. Really screwed here...

What to do??
:-({|=

oldfred
January 11th, 2013, 06:29 PM
That seems more like a bad write or download as if system cannot read a sector.

Check that you have a good download with md5sum and if using a DVD burn at the slowest speed you can.

Also instructions for CD/DVD or USB
http://www.ubuntu.com/desktop/get-ubuntu/download
Write image or burn image not copy ISO as one large file to CD.
http://www.ubuntu.com/download/help/burn-a-cd-on-windows
https://help.ubuntu.com/community/BurningIsoHowto
https://help.ubuntu.com/community/Installation/FromUSBStick


https://help.ubuntu.com/community/HowToMD5SUM