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I was recently trying to update my laptop running on 11.10 to 12.04 in update manager and in the middle of the update, my update froze. So I waited for an hour before I decided to restart my computer. When I restarted it, it had a black, not a purple, screen that kept flashing and I cant do anything. There is absolutely no gui interface and I cant do anything. Does anyone know how I can fix this? I have a disk with Ubuntu 11.10 on it. I don't any files cause I have a backup, I just need the computer working. Can you please help me fix this? Thanks!

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migrated from stackoverflow.com Jun 8 '12 at 23:32

This question came from our site for professional and enthusiast programmers.

    
Do you get a grub interface immediately after the BIOS does its things? Can you edit the kernel command line? If you edit it to add single, do you get a usable shell? –  sarnold Jun 8 '12 at 23:29
    
I dont know what a grub interface is, but all I see is a black screen that keeps flashing and there is no terminal –  Shalin Shah Jun 8 '12 at 23:40

3 Answers 3

See if you can get into the bios:

http://www.computerhope.com/issues/ch000192.htm

Set it to boot from the cd (you can do this with USB too), put a cd (or USB stick) in that has the Ubuntu version (e.g. .iso cd) and reboot.

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Ubuntu usually crashes and shows some bugs if you upgrade it, via CD/DVD or online upgrade.

I used to clear install it, make sure the current version on computer be formatted from hard drive and start fresh install the latest version.

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it's based on my experience. it's not absolutely for your recommendation –  obysr Jun 9 '12 at 0:49
    
I cant install it. I tried re-installing ubuntu 11.10 with my cd and it did not work. Are there any other ways I can install it? Is there a way I can reach terminal? If I do, what commands should I type in? Thanks! –  Shalin Shah Jun 9 '12 at 1:48
    
just format root partition (mark as "/" [slash]) before.. and it will perfectly work. if it can't, there's something wrong with installer. maybe checksum is not right. –  obysr Jun 9 '12 at 2:26

Since you don't need to save any data, the easiest solution would be to re-install 11.10 from the CD/ DVD you have. Just insert the CD/ DVD, restart the laptop and follow the steps - it should be pretty easy.

I would create another CD/ DVD with 12.04 though, and install it directly. Good luck!

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I put my cd inside and it doesn't work. I don't know how to make it work. Any Ideas Pleeaase??? Thanks!!! –  Shalin Shah Jun 9 '12 at 1:37
    
What brand of laptop is it? –  AlexT Jun 9 '12 at 3:03
    
hp pavilion dv2000. Is there a way I can fix it? –  Shalin Shah Jun 9 '12 at 5:40
    
You should be able to boot from the CD following the instructions here. In short, just press ESC as soon as the laptop starts/ reboots, then F9 for Boot Option Menu and then select Internal CD/DVD ROM Drive. This should tell the laptop to boot from the CD and you will be able to reinstall 11.10 –  AlexT Jun 9 '12 at 17:53

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