Question

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rated 0 times [ 8] [ 0] / answers: 1 / hits: 36443 / 2 Years ago, tue, july 26, 2022, 2:39:51

After deleting old Linux partitions in order to free space on hard disk, I got an error from GRUB:

error: no such partition

And then I saw a grub rescue> prompt. After googling around I found that in order to boot normally I have to type the following commands.

set prefix=(hd0,msdos5)/boot/grub

set root=(hd0,msdos5)

insmod /boot/grub/linux.mod

linux /vmlinuz root=/dev/sda5 ro

initrd /initrd.img

boot

Here is the boot info summary report created by Boot-Repair.

However, on each reboot I have to type this again. How can I tell to GRUB once and all what configuration file to use?

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answered 2 Years ago socelebrate · Accepted Answer

Try these commands

sudo update-grub

sudo grub-install /dev/sda

If you want a graphical option, try boot-repair

sudo add-apt-repository ppa:yannubuntu/boot-repair && sudo apt-get update

sudo apt-get install -y boot-repair && boot-repair

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