November 18

Linux: Grub recovery

How to recover when /boot/grub2/grub.cfg and or the grub directories are missing.

RHEL 7

1. Re-install grub2:

grub2-install /dev/<disk name>


2. Create grub.cfg file:

grub2-mkconfig -o /boot/grub2/grub.cfg

3. Create device.map file if missing:

vi /boot/grub2/device.map

(hd0)   /dev/<disk name>


4. Reboot


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Posted November 18, 2021 by Timothy Conrad in category "Linux

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If I were to describe myself with one word it would be, creative. I am interested in almost everything which keeps me rather busy. Here you will find some of my technical musings. PGP: 4CB8 91EB 0C0A A530 3BE9 6D76 B076 96F1 6135 0A1B