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How do I change GRUB settings in Ubuntu?
It’s automatically created by running the update-grub command as root — in other words, by running sudo update-grub on Ubuntu. Your own GRUB settings are stored in the /etc/default/grub file. Edit this file to change GRUB2’s settings. Scripts are also located in the /etc/grub.
How do I reinstall Ubuntu without losing files?
Info
- Boot using live bootable usb.
- take backup or your data ( just in case if something goes wrong )
- first try to re-install Ubuntu.
- if re-installation doesn’t work.
- delete all directories from ubuntu root except /etc/ and /home/ then install ubuntu.
What to do if you cant install Grub on Ubuntu?
In boot menu Added backlight=vendor in Try Ubuntu configuration text just before quiet splash. Chose Try Ubuntu. In terminal ran sudo rmmod ideapad_laptop to enable wifi. Ran installation and chose to install updates during installation. EFI partition was selected automatically so I assigned 9700MB for swap space and 80GB for Ubuntu.
How can I get Grub to boot on my hard disk?
Solved it by first clicking on the ‘Try Ubuntu’ button and then on the ‘Install Ubuntu’ desktop shortcut. I think it might have messed up your hard disk name. Do try reinstalling GRUB. Boot using a live CD of Ubuntu. It lists the complete partition table of the hard disk.
Why do I get error grub install / dev / sda failed?
If I run the Ubuntu 12.04 install CD and click install after the config screens, I get the error Executing ‘grub-install /dev/sda’ failed. This is a fatal error. All the questions I’ve read while looking for a solution are related to dual boot.
Why is grub not installed on my root partition?
Turned out that I had created “logical” instead of “primary” partitions during the installation process for both my EFI and root partition. I ran the installation again, this time configuring both partitions as a “primary” partition, and the error was gone this time.