Can't choose the OS at startup
Try to show the Grub menu
Hold down the Shift key as the computer attempts to boot to display the GRUB 2 menu. In certain circumstances, if holding the Shift key method does not display the menu pressing the Esc key repeatedly may display the menu.
If that doesn't work, then using Boot Repair to reinstall and fix Grub.
Repair the bootloader
To restore the Grub bootloader, follow these steps.
Open a terminal, and run the following commands:
sudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install -y boot-repair boot-repair
After a few seconds, Boot Repair's main window will open.
Reboot to test everything out.
If everything went well, you should be up and running by now.
- Boot a live cd
- Mount the partition where you want to install GRUB, likely it's the partition where Ubuntu is installed
open a terminal and run this command
sudo grub-install /dev/sdX --root-directory=/where/ubuntu/is/mounted
choose the X and the right path according to your configuration.
You do not have to run
grub-install just reboot.
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anilkumar b 3 months
I tried to install Ubuntu. My system already has Windows 7. I would like to keep the existing Windows installation. After installation of Ubuntu I restarted the PC, but there is no boot menu. As per the opinion of the Linux team the following commands were used.
sudo grub-install /dev/sda sudo update-grub
The command executed correctly, but there is still no boot menu. What do I have to do?
Please help me.
SirCharlo over 10 yearsI've edited your post to remove the caps.. Please check before posting if your Caps Lock is on.. ;)
Lilian A. Moraru over 10 years@SirCharlo I still see it in all caps...
SirCharlo over 10 yearsCommented before actually editing :P
SirCharlo over 10 yearsWELL READING SOMETHING IN ALL CAPS IS USUALLY QUITE ANNOYING, SO TO HELP YOU GET MORE HELP I THOUGHT IT WOULD BE APPROPRIATE TO DO SO!!!!
anilkumar b over 10 yearscan you help me through any remote desktop management software
SirCharlo over 10 yearsAbout your problem, did your wipe your hard drive, or did you choose the option to keep the existing Windows installation when you installed Ubuntu?
user68186 over 10 yearsPlease provide more details about the installation. Did you install Ubuntu along side Windows, or did you replace Windows during installation? If you have replaced Windows by mistake, and Ubuntu is the only operating system, grub menu does not display. @SirCharlo said it before me. The last comment makes me believe that this may be 4 existing primary partition issue, rather than grub issue.
Admin over 10 yearshow did you set up your harddisk(s)? Are you using different ones for ubuntu and windows?
anilkumar b over 10 yearsnstall Ubuntu along side Windows,during installation the option was install ubuntu inside windows. now my pc have windows7, i like to keep it
nanofarad over 10 yearsPlease ask a new question about the remote management software.
anilkumar b over 10 yearswhat you mean by"Mount the partition where you want to install GRUB," i have no experience in ubuntu
anilkumar b over 10 yearsi tried it but no result, there is no boot repair window opened
anilkumar b over 10 yearssudo add-apt-repository ppa:yannubuntu/boot-repair sudo apt-get update sudo apt-get install -y boot-repair boot-repair ////////// no result