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[ubuntu] boot error: kernel bug + invalid opcode @ CPU1

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http://ubuntuforums.org – Hello everyone. Sorry if this thread is not in the right place. I have a dual boot ACER laptop with Ubuntu 11.10 and W7. The graphics card is an ati mobility radeon. Some times, only when i choose ubuntu to load in the grub, after 2 or 3 seconds i get this error: I reset the system and all is well. I boot into Ubuntu just fine. Has anyone faced something like it? (Hardware)

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Submitted by xskl on 12/15/2012 – Made popular on 12/15/2012

Stories similar to [ubuntu] boot error: kernel bug + invalid opcode @ CPU1

I just bought a a Samsung series 5 Ultra laptop (NP520U4C-A01UB). I was able to disable the secure boot feature in the bios and install Ubuntu 12.04 (as dual boot with Windows eight). Ubuntu works fine, but I can't boot to Windows in Grub. I get the following messages:

Code: error: unknown command 'drivemap' error: invalid EFI filepath Does anyone know how to fix or work around this?

I've followed the instructions for the ubuntu windows installer for my Sony Vaio laptop(SVT131A11M) and once the system restarted it gave me an option to boot into Win7 or Ubuntu.

I have a dual boot of Win7 and Ubuntu on my HP laptop. I upgraded from Ubuntu 11.10 to 12.04 today and on restart I got a different black Grub screen instead of the usual purple one. (GNU GRUB version 1.99-21ubuntu3.1) Each boot option only returns error messages.

After installing Ubuntu 11.10 on a pc which already has Windows 7 I get this error:

error: invalid arch independent ELF magic. grub rescue>

So I used Supergrub boot disk to get into Ubuntu. And made sure that grub-efi-amd64 package is present, and I ran sudo grub-install /dev/sda command. That also led to the same error. Then I tried the solution given here and here.

I had a Win7/Ubuntu dual-boot set up on my laptop. I deleted Ubuntu, and when I load up my computer I am now met with a screen displaying the following:

error: no such partition. grub rescue>

How can I have my computer boot straight into Windows 7 again?

Solved: I created a win7 system repair disc using another machine, and fixed the problem using the bootrec command within Command Prompt.

i'm Linux Newby and im using Ubuntu 12.04 (64bit) on Acer timeline 3820tg. Everything worked fine until I unplugged the power adaptor. Well In Batterymode everything was still okay, but when i tried to reboot, i get the error: “The system is running in low-graphics mode”. And i can't reboot even with the power supply.

I have an HP Pavilion Sleekbook 14 laptop that I have installed Ubuntu 12.10 dual boot with the original windows 8. I used boot-repair to get set up to boot into grub.

My issue is that I have not been able to get it to boot straight off the new efi file that was created. I have looked around the boot options in the bios screen, but it does not give me a choice for Ubuntu.

Code: error: no such device: abc123 error: cannot get C/H/S values.

I have a laptop on which I had Win 7 and Ubuntu 12.04 installed. The hdd has two partitions (one primary and one extended). Grub wasn't loaing initially so I ran the boot disk repair tool which seemed to sort it out. However, I mistakenly removed python (long story) from the Ubuntu OS and this obviously messed up Ubuntu a lot.