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How to recover GRUB without use LIVE CD


  17:05:00 by admin, Categories: GRUB GestoR Unified Boot

many times , grub 2 is a boot manager , it come by default with many distributions LINUX, and it in a moment not operate, why ?

the major cause is maybe, it try boot from fail device or simply not exist or setting bad.

I am going to show how fix this problem.   the messages is showing with the following text


root rescue >


Primero accedé a la lista de particiones disponibles:

those steps are leaded toward centos

chroot /mnt/sysimage
ls /dev/sd*
s /sbin | grep grub2  # Identify GRUB installation command
# /sbin/grub2-install /dev/sda  # Install the boot loader in the boot partition of the first hard disk

grub> root (hd0,0) or  (hd0,1) , look at fileystem for selection  (ls /dev/sd*)
root (hd0,0)
Filesystem type unknown, partition type 0xfd

grub> setup (hd1)
Checking if "/boot/grub/stage1" exists... no
Checking if "/grub/stage1" exists... <- here it usually hangs, but sometimes I get a no.


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