Difference between revisions of "Grub 2 recovery"

Revision as of 16:55, 9 April 2015

En esta sección encontrará todos los procedimientos de Instalación y Configuración del Hardware y Software del SC3

1. Boot into Live CD 2. Enter the following commands:

sudo fdisk -l

And find your Ubuntu partition

3. Run the following commands:

sudo mount /dev/sda2 /mnt

sudo mount --bind /sys /mnt/sys

sudo mount --bind /proc /mnt/proc

sudo mount --bind /dev /mnt/dev

sudo chroot /mnt

4. Now reinstall Grub2

grub-install --recheck /dev/sda

apt-get install --reinstall grub2

5. Run as root

update-grub2

since in the previous steps the grub list was created with an /dev/sda4 as an entry.

These are the commands for managing Grub 2. 1. Check the file /etc/default/grub and adjust the options accordingly 2. Install grub2 in MBR

grub-install /dev/sda

3. Auto-generate the boot menu for grub2:

grub-mkconfig -o /boot/grub/grub.cfg

4. Update the setup menu file:

update-grub

5. For recovering a node in guane run:

grub-mkconfig -o /boot/grub/grub.cfg

grub-install /dev/sda

@@ Line 3: / Line 3: @@
 <div class="thumbnail img-thumbnail">http://wiki.sc3.uis.edu.co/images/a/a8/Logo_sc33.png</div>
 <p><div class="btn btn-primary"><i class="fa  fa-long-arrow-left"></i> [[Grub]]</div></p>
+<p><div class="btn btn-primary"><i class="fa  fa-long-arrow-left"></i> [[Wiki SC3]]</div></p>
+<div class="column clearfix">
+    <div class="col-md-14">
+        <div class="well well-midnight">
+            <h4>Administración</h4>
+            <p class="bs">En esta sección encontrará todos los procedimientos de Instalación y Configuración del Hardware y Software del SC3</p>
+        </div>
+    </div>
+</div>
 <div class="col-md-14">