Take the 2-minute tour ×
Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free, no registration required.

I already installed windows 7 in my laptop. Then, I installed Ubuntu 12.10 version alongside dual boot with windows. But, when i login into Ubuntu OS, it shows error like below :

system running in low config mode .

So, I started resolving that issue. But it worse. After solving the previous issue, again i got an error like below :

error: no such partition.grub rescue>

Then, I tried to repair ubuntu os through usb flash drive. It works, but after few times, I got an error like below :

error;unknown file system. grub rescue>

Again, I tried to install a fresh copy of ubuntu os using usb flash drive.

But, it doesn't boot even windows OS. My system is totally crashed.

I tried many ways by Googling,

How can I resolve this ?

(Note: I don't have CD/DVD drive in my laptop)

share|improve this question
please indicate your Boot-Info URL ( help.ubuntu.com/community/Boot-Info ) –  LovinBuntu Dec 11 '13 at 21:46

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.