How do I reconfigure grub in Linux?

How do I reconfigure grub in Linux?

Resolution

1. Place your SLES/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”.
5. Once this command completes successfully reboot your system by entering the command “reboot”.

How do I change the boot order in Ubuntu kernel?

To manually set a specific kernel to boot, the user must edit the /etc/default/grub file as the superuser/root. The line to edit is the GRUB_DEFAULT=0. After setting this line to the desired setting (see below), save the file and update the GRUB 2 configuration file using the following command: sudo update-grub.

How do I change boot order?

Generally, the steps go like this:

1. Restart or turn on the computer.
2. Press the key or keys to enter the Setup program. As a reminder, the most common key used to enter the Setup program is F1.
3. Choose the menu option or options to display the boot sequence.
4. Set the boot order.
5. Save the changes and exit the Setup program.

How to move Grub from one disk to another?

Since it isn’t done during execution of the previous command, running sudo update-grub after the install will ensure GRUB 2’s menu is up-to-date. another option might be to clone the 13.04 with Clonezilla, then restore using Clonezilla to the SSD drive using a CZ boot stick/CD/DVD.

Where is the Grub file located in Ubuntu?

The primary configuration file for changing menu display settings is called grub and by default is located in the /etc/default folder. There are multiple files for configuring the menu – /etc/default/grub mentioned above, and all the files in the /etc/grub.d/ directory. Partition numbering has changed. The first partition is now 1 rather than 0.

What’s the difference between Grub 1 and GRUB 2?

GRUB 2 incorporates a totally revised directory and file hierarchy. The major GRUB 2 folders include /etc/grub.d, which contains the main GRUB 2 scripts, and /boot/grub, which contains the GRUB 2 modules and menu file (grub.cfg). User customization’s are normally made to the /etc/default/grub file.

Where are the configuration scripts in GRUB 2?

Configuration changes are normally made to the /etc/default/grub file and to the custom scripts located in /etc/grub.d. No changes are made to the GRUB 2 menu until the update-grub command is run as root. This command runs the GRUB 2 configuration scripts and updates the /boot/grub/grub.cfg file.