I have Windows 7. I tried to install Ubuntu and the installation was almost over when an error message popped up and the installation failed. Then I rebooted the computer but the computer wont start. A blank screen appeared and nothing is happening. The same thing is happening every time I am starting my computer. How can I solve it? Please help.
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2Can U be more specific on how did U install Ubuntu .. next to Windows so that U can do a dual boot with windows ,did U delete Windows and installed Ubuntu only ?? Another thing what architecture did U used 32 bit or 64 ,why I'm asking ?? because if U have a Cpu with a 64-bit architecture and U installed an os for 32-bit it's ok , if instead U have a 32-bit Cpu and U installed a 64 is obvious why doesn't work .However could be even because U made in a wrong way the partitions .Just give me a bit more details about how did you install Ubuntu ,help me so I can help U .– Baltazar BlakeOct 22, 2012 at 3:46
3 Answers
Try to hold down the Shift key during PC boot and see if a boot menu appears
or
try to use the boot-repair program from a LiveCD-USB of Ubuntu to repair the bootloader.
At this point, the easiest thing is probably to install Ubuntu again. If it fails a second time, make a note of the exact error message so you can put it in a question. As it is now, there's not too much anyone can say to help you as you haven't given sufficient information.
To fix grub boot loder follow this guide.
You need Ubuntu 12.04 livecd for repairing grub boot loader . Here assuming the Ubuntu partition is sda7. Boot up ubuntu from the livecd,open terminal and run:
sudo -i and see what is your linux partition and note it I assume it sda7 here.
mount /dev/sda7 /mnt
mount /dev/sda7 /mnt/boot
grub-install --root-directory=/mnt/ /dev/sda
mount --bind /proc /mnt/proc
mount --bind /dev /mnt/dev
mount --bind /sys /mnt/sys
chroot /mnt update-grub
umount /mnt/sys
umount /mnt/dev
umount /mnt/proc
exit