Re: [CentOS] [SOLVED] I need SERIOUS help on GRUB in CentOS 7.5 1804

[Yves Bellefeuille]

Turritopsis Dohrnii Teo En Ming wrote:

> I have solved the problem in implementing GRUB Legacy 0.97 for my
> Extremely Simple Linux. My solution is posted at
>
> http://lists.linuxfromscratch.org/pipermail/lfs-chat/2018-October/028968.html

Using Windows 10 to run CentOS 6 under Virtual Box, using Putty to log
into CentOS (what?) and rebuilding a bunch of programmes from source
isn't "Extremely Simple".

-- 
Yves Bellefeuille


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[CentOS] [SOLVED] I need SERIOUS help on GRUB in CentOS 7.5 1804

[Turritopsis Dohrnii Teo En Ming]

Good morning from Singapore,


I have solved the problem in implementing GRUB Legacy 0.97 for my Extremely 
Simple Linux. My solution is posted at


http://lists.linuxfromscratch.org/pipermail/lfs-chat/2018-October/028968.html


Now I will need to learn how to implement GRUB2 for my Extremely Simple Linux.


Thank you.



From: Turritopsis Dohrnii Teo En Ming
Sent: Wednesday, October 10, 2018 4:32 PM
To: CentOS mailing list
Cc: Turritopsis Dohrnii Teo En Ming
Subject: I need SERIOUS help on GRUB in CentOS 7.5 1804

Good afternoon from Singapore,

I need SERIOUS help on GRUB in CentOS 7.5 1804.

Please refer to my installation notes at 
http://lists.linuxfromscratch.org/pipermail/lfs-chat/2018-October/028964.html

According to Petros' instructions, I need GRUB Legacy 0.97 for my Extremely 
Simple Linux. But GRUB Legacy 0.97 has been deprecated in CentOS 7.5. GRUB2 is 
installed by default on CentOS 7.5.

So I defied Petros' instructions and used GRUB2 for my Extremely Simple Linux 
compilation, with the end result that I do not see any operating system 
selection menu on GRUB2. What I get is a grub prompt and I need to enter the 
following GRUB2 commands:

grub> linux /boot/vmlinuz-4.18.12 root=/dev/sda1 ro quiet
grub> boot

(1) If I seriously want to use GRUB2 for my Extremely Simple Linux, I would 
need to modify /boot/grub/grub.cfg to suit GRUB2. Because Petros' 
/boot/grub/grub.cfg is meant for GRUB Legacy. Am I right? I am no expert on 
GRUB.

(2) If I want to use GRUB Legacy for my Extremely Simple Linux, I would need to 
use CentOS 6 instead of CentOS 7?

(3) If I insist on using CentOS 7.5, is there any way of getting rid of GRUB2 
and installing GRUB Legacy instead?

If you watch my short 2-min YouTube video at 
https://www.youtube.com/watch?v=YrJADssqaQU , I am not getting any operating 
system selection menu on GRUB2. I am getting a grub> prompt only.
Teo En Ming Extremely Simple Linux 1810.08 - 
YouTube
www.youtube.com
Teo En Ming Extremely Simple Linux 1810.08




Please advise.

Thank you.

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[2] http://tdtemcerts.blogspot.sg/
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