How to Change the
Boot Sequence of Oracle Linux 7
Applies to:
Oracle Enterprise Linux – Version: 7
Description:
After successful
installation of Oracle Linux 7, when I restart the Linux I should select the
second option from boot sequence within 3 second to start up the Oracle Linux.
Solution:
To change the boot
sequence in Oracle Linux 7 follow the simple steps:
GRUB2
count the menu entries in the configuration file starting at 0 for the first
entry.
To
display the menu entries that are defined in the configuration file:
[root@khi]#
cd /boot/grub2
[root@khi
grub2]# grep '^menuentry' /boot/grub2/grub.cfg
menuentry
'Oracle Linux Server (4.1.12-61.1.18.el7uek.x86_64 with Unbreakable Enterprise
Kernel) 7.3' --class oracle --class gnu-linux --class gnu --class os
--unrestricted $menuentry_id_option
'gnulinux-4.1.12-61.1.18.el7uek.x86_64-advanced-8898f753-92f7-4919-9b33-a389fbeceae9'
{
menuentry
'Oracle Linux Server (3.10.0-514.el7.x86_64 with Linux) 7.3' --class oracle
--class gnu-linux --class gnu --class os --unrestricted $menuentry_id_option
'gnulinux-3.10.0-514.el7.x86_64-advanced-8898f753-92f7-4919-9b33-a389fbeceae9'
{
menuentry
'Oracle Linux Server (0-rescue-6cd2d0dcb059426f838f676d4963ff2d with Linux)
7.3' --class oracle --class gnu-linux --class gnu --class os --unrestricted
$menuentry_id_option
'gnulinux-0-rescue-6cd2d0dcb059426f838f676d4963ff2d-advanced-8898f753-92f7-4919-9b33-a389fbeceae9'
{
I
need to boot Oracle Linux from second menuentry, to set the second menuentry
for default boot execute the following command:
[root@khi
grub2]# grub2-set-default 1
You
must run the grub2-mkconfig command to re-generate the /boot/grub2/grub.cfg
file:
[root@khi
grub2]# grub2-mkconfig -o /boot/grub2/grub.cfg
Your
comments, especially which will help us improve the functionality, will be
greatly appreciatedJ
