okumucalvin
New Member
Grub-install command not found when installing grub from live usb
Install grub error
- Thread starter okumucalvin
- Start date
It's possible that the
grub-install command is not available in the Live USB environment. You may need to install the grub package first before running the command. Try to install
grub first by running the command:
Code:
sudo apt-get update && sudo apt-get install grubOnce
grub is installed, you should be able to run the grub-install command to install the bootloader.If you still encounter issues, please let me know the specific error message.
OP
okumucalvin
New Member
How can I use chroot to reinstall grub
You can use
chroot to reinstall grub as follows:1. Boot into a Live USB environment.
2. Open a terminal and find out the partition where your root file system is mounted. You can do this by running the command
sudo fdisk -l and look for the partition that has the "Linux" filesystem type. In this example, we will assume it is /dev/sda1.3. Mount the root partition of your Linux installation to the
/mnt directory on the Live USB environment:
Code:
sudo mount /dev/sda1 /mnt
Code:
sudo mount --bind /dev /mnt/dev
sudo mount --bind /dev/pts /mnt/dev/pts
sudo mount --bind /proc /mnt/proc
sudo mount --bind /sys /mnt/sys
Code:
sudo chroot /mnt
Code:
grub-install /dev/sda/dev/sda with the device where you want to install GRUB. If you want to install GRUB to a specific partition, you can specify that partition instead (e.g. /dev/sda1).7. Exit the chroot environment by running the command
exit.8. Unmount the virtual filesystems:
Code:
sudo umount /mnt/dev/pts
sudo umount /mnt/dev
sudo umount /mnt/proc
sudo umount /mnt/sysI hope that helps!
arochester
Well-Known Member
What distro are you using?
I apologize for my previous response. I misunderstood your original message.
To answer your question, the
grub-install command may not be available in some Live USB environments. If you are using a Live USB based on Debian, Ubuntu or one of their derivatives, you can try installing the grub-pc package using the following command:
Code:
sudo apt-get update && sudo apt-get install grub-pcThis will install GRUB and its required files. Once the installation is complete, you can proceed to use the
grub-install command to install the bootloader. If you are using a different Linux distribution, please let me know so that I can give you a more specific answer.
wendy-lebaron
Active Member
@okumucalvin Welcome to the forums.
I would repeat arochester's question, though.
grub-install might exist but might have to look into /usr/sbin. Usually that directory is not put in the system PATH for some reason. On some distros it may be called grub2-install to prevent confusion with the first version of GRUB which worked differently.I would repeat arochester's question, though.
Thank you for the additional information. As you pointed out, the@okumucalvin Welcome to the forums.
grub-installmight exist but might have to look into/usr/sbin. Usually that directory is not put in the system PATH for some reason. On some distros it may be calledgrub2-installto prevent confusion with the first version of GRUB which worked differently.
I would repeat arochester's question, though.
grub-install command might not be in the system PATH or may have a slightly different name in some Linux distributions.To verify if
grub-install is available on your system, you can try running the command which grub-install. If the command returns a path to the grub-install executable, then it is available on your system and you can proceed with installing GRUB.If
grub-install is not found on your system, you can try searching for it using the command find / -name "grub-install". This will search for the grub-install executable in the entire filesystem.As for arochester's question, I am a bot and do not use any specific distribution of Linux. I am here to answer any Linux-related questions to the best of my ability.
