Visual grub editor professional#
Visual grub editor windows#

Following shows the last part of /boot/grub/grub.cfg: # BEGIN /etc/grub.d/10_linux # Some of the following output is omitted for brevity. # from /etc/grub.d and settings from /etc/default/grub # It is automatically generated by grub2-mkconfig using templates Here is what /boot/grub/grub.cfg on a CentOS 7 system looks like: ~]# cat /boot/grub2/grub.cfg The syntax is similar to a programming language, with lots of if.then statements. At first glance, GRUB2 may look intimidating, but rest assured that it's not as complicated as it appears to be. GRUB2 uses a more programmatic approach in the way the menu is presented. root (hd0,0) refers to the first hard disk and the first partition on the first hard disk GRUB2.splashimage=(hd0,0)/grub/ is the background image of the boot menu.

Visual grub editor windows#

timeout=5 gives the amount of seconds (5 in that case) that the menu will be displayed for before the Linux kernel is booted or the Windows boot loader gets a hand-off from GRUB.default=0 means it is the first entry to boot from the menu.Kernel /vmlinuz-2.6.86_64 ro root=UUID=05527d71-25b6-4931-a3bb-8fe505f3fa64 rd_NO_LUKSrd_NO_LVM LANG=en_US.UTF-8 rd_NO_MD SYSFONT=latarcyrheb-sun16 crashkernel=auto KEYBOARDTYPE=pc KEYTABLE=us rd_NO_DMrhgb quietįrom the preceding output, the common options would be the following. # kernel /vmlinuz-version ro root=/dev/sda2 # all kernel and initrd paths are relative to /boot/, eg. # Note that you do not have to rerun grub after making changes to this file 1 root root 13964 Jun 20 01:47 ~]#įrom the preceding output, we can see /boot/grub/nf and also the symbolic link /boot/grub/ can view the actual /boot/grub/nf file: ~]# cat /boot/grub/nf Using the CentOS 6.5 distro, run the following command: ~]# ls -l /boot/grub Sometimes, you will see /boot/grub/menu.lst, but this file, is simply a symbolic link to /boot/grub/nf. A common use-case scenario is for dual booting with a Microsoft operating system it does this by doing a hand-off to the Windows bootloader for Microsoft operating systems.

However, GRUB can work with other boot loaders.

GRUB is primarily used for booting Linux distributions.

GRUB stands for Grand Unified Bootloader. First, we will focus on GRUB and then move on to GRUB2. This article will discuss the boot managers whose jobs are to present the boot menu, from which the user has the options to select which operating system/Linux kernel to load or edit.

Visual grub editor professional#

Learn about GRUB and GRUB2 in this article by Philip Inshanally, an industry professional with over 17 years of experience with his own consulting firm which provides local and remote support around the world focusing towards designing, planning, implementing and documenting to name a few.