How do I install grub on a flash drive?

How do I manually install GRUB bootloader?

Here’s what I’d do:

  1. Boot the machine using a Live CD.
  2. Open a terminal.
  3. Find out the name of the internal disk by using fdisk to look up the device’s size. …
  4. Install GRUB boot loader onto the proper disk (the example below assumes it is /dev/sda ): sudo grub-install —recheck —no-floppy —root-directory=/ /dev/sda.

28 апр. 2012 г.

How do I reinstall grub from USB?

Resetting Grub Bootloader using a Ubuntu Live USB drive

  1. Try Ubuntu. …
  2. Determine the Partition on Which Ubuntu is Installed Using fdisk. …
  3. Determine the Partition on Which Ubuntu is Installed Using blkid. …
  4. Mount The Partition with Ubuntu Installed On It. …
  5. Restore Missing Grub Files Using the Grub Install Command.

5 нояб. 2019 г.

Where should I install GRUB bootloader?

Usually, you should install the boot loader on your first machine hard disk MBR, which is / dev/sda in most cases. The installation process of GRUB will start as soon as you hit the Enter key.

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Can I make a flash drive bootable?

To create a bootable USB flash drive

Insert a USB flash drive into a running computer. Open a Command Prompt window as an administrator. Type diskpart . In the new command line window that opens, to determine the USB flash drive number or drive letter, at the command prompt, type list disk , and then click ENTER.

How do I reinstall GRUB bootloader?

Reinstall the GRUB boot loader by following these steps:

  1. Place your SLED 10 CD 1 or DVD in the drive and boot up to the CD or DVD. …
  2. Enter the command «fdisk -l». …
  3. Enter the command «mount /dev/sda2 /mnt». …
  4. Enter the command «grub-install —root-directory=/mnt /dev/sda».

3 мар. 2020 г.

Why does grub install fail?

Ensure that Secure Boot, Fast Boot, CSM in UEFI BIOS setup and Fast Startup in Win 10/8.1 are disabled and for the «Something else» install option, the «Device for boot loader installation» is the Windows EFI System Partition(= ESP = fat32/about 104MB) which is usually dev/sda1, or if unsuccessful select the whole disk …

What are the grub commands?

Table 1. Common GRUB 2 command-line commands

Command Options Explanation
help [command] Display help—either a list of commands or help on the specified command.
initrd filename Load the specified initial RAM disk file.
insmod module_name Load the specified module (driver).
linux filename Load the specified Linux kernel.

How do I reinstall grub on mint?

When you’re in, follow the steps below to reinstall grub 2:

  1. Open Gparted Partition Editor from Unity Dash to check out which partition your Ubuntu/Linux Mint system installed. …
  2. Press Ctrl+Alt+T on keyboard to open terminal. …
  3. Now reinstall Grub2 via command below: grub-install —root-directory=/mnt /dev/sda.
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1 нояб. 2013 г.

What are the grub rescue commands?


Command Result / Example
linux Loads the kernel; insmod /vmlinuz root=(hd0,5) ro
loop Mount a file as a device; loopback loop (hd0,2)/iso/my.iso
ls Lists the contents of a partition/folder; ls, ls /boot/grub, ls (hd0,5)/, ls (hd0,5)/boot
lsmod List loaded modules

Do I need to install GRUB bootloader?

No, you don’t need GRUB. You do need a bootloader. GRUB is a bootloader. The reason many installers will ask you if you want to install grub is because you might already have grub installed (usually because you have another linux distro installed and you’re going to dual-boot).

Does grub need its own partition?

GRUB (some of it) is installed in the MBR. The MBR are the first 512 bytes on a disk. … It is very useful to have /boot as its own partition, since then GRUB for the entire disk can be managed from there.

How do I install GRUB menu?

via Partition Files Copy

  1. Boot to the LiveCD Desktop.
  2. Mount the partition with your Ubuntu installation. …
  3. Open a terminal by selecting Applications, Accessories, Terminal from the menu bar.
  4. Run the grub-setup -d command as described below. …
  5. Reboot.
  6. Refresh the GRUB 2 menu with sudo update-grub.

6 мар. 2015 г.

How can I tell if my USB is bootable?

How to Check If a USB Drive Is Bootable or Not in Windows 10

  1. Download MobaLiveCD from the developer’s website.
  2. After the download is complete, right click on the downloaded EXE and choose “Run as Administrator” for the context menu. …
  3. Click on the button labeled “Run the LiveUSB” in the bottom half of the window.
  4. Chose the USB drive you want to test from the drop-down menu.
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15 авг. 2017 г.

What is a bootable flash drive?

A bootable flash drive will allow you to boot the computer from the file system on the flash drive rather than your hard drive. … In order for us to boot to a flash drive, it must have a master boot record, volume boot record, and contain an operating system or a program that can be executed.

How do I make my USB bootable to normal?

To return your usb to normal usb (no bootable), you have to:

  1. Press WINDOWS + E.
  2. Click on «This PC»
  3. Right click on your bootable USB.
  4. Click on «Format»
  5. Select the size of your usb from the combo-box on top.
  6. Select your format table (FAT32, NTSF)
  7. Click on «Format»

23 нояб. 2018 г.