Sysadmin Grub Help?

I'm not sure. None listed where it was mounted. Only the problem with the grub not working.

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Are you booting to the grub prompt?

 

Here's come reading links for archive sake:

http://dareneiri.github.io/Configuring-Grub-2-on-CentOS-7/
https://access.redhat.com/documenta..._guide/ch-working_with_the_grub_2_boot_loader
https://unix.stackexchange.com/questions/329926/grub-starts-in-command-line-after-reboot
https://www.centos.org/forums/viewtopic.php?t=48258
https://www.centos.org/forums/viewtopic.php?t=17093
https://www.linux.com/learn/how-rescue-non-booting-grub-2-Linux
https://www.centos.org/forums/viewtopic.php?t=49990

 

First you have to find the drive with your OS.

Code:

grub> ls

Then you can boot into the server using:

Code:

grub> set prefix=(md/md2)/boot/grub2
grub> set root=(md/md2)
grub> insmod linux
grub> normal

Where md/md2 is the drive with your OS.

 

Once the server boots, run:

Code:

# yum reinstall grub2-efi shim
# grub2-mkconfig -o /boot/efi/EFI/centos/grub.cfg
# reboot

 

Yea, do it all in the IPMI.

I updated my post 2 above, so check that out.

 

Go through each one until you find the linux file system.

 

It's probably md/md2 or md/md3

 

You know when you have the right drive when you see the home, root, sys, etc. folders.

Try

Code:

# ls (md/md2)

 

Yes, that's it.

 

Now run this:

Code:

grub> set prefix=(md/md2)/boot/grub2
grub> set root=(md/md2)
grub> insmod linux
grub> normal

 

Yes, run that when you're into the system.