CentOS - Oct 2018 - [SOLVED] 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.

Please advise.

Thank you.

===BEGIN SIGNATURE=== 
Turritopsis Dohrnii Teo En Ming's Academic Qualifications as at 30 Oct 2017 
[1] https://tdtemcerts.wordpress.com/ 
[2] http://tdtemcerts.blogspot.sg/ 
[3] https://www.scribd.com/user/270125049/Teo-En-Ming 
===END SIGNATURE===

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<https://www.youtube.com/watch?v=YrJADssqaQU>
www.youtube.com
Teo En Ming Extremely Simple Linux 1810.08




Please advise.

Thank you.

===BEGIN SIGNATURE==Turritopsis Dohrnii Teo En Ming's Academic
Qualifications as at 30 Oct 2017
[1] https://tdtemcerts.wordpress.com/
[https://s0.wp.com/i/blank.jpg]<https://tdtemcerts.wordpress.com/>

Turritopsis Dohrnii Teo En Ming's Academic Qualifications ? Historical
Records, Office of the Grand Historian<https://tdtemcerts.wordpress.com/>
tdtemcerts.wordpress.com
Historical Records, Office of the Grand Historian



[2] http://tdtemcerts.blogspot.sg/
[https://4.bp.blogspot.com/-ef0ZeVnu5So/W7d8YTwgjGI/AAAAAAAAAHI/V_0J0ZQvj7sdvFU9bKQaPP7Naop-XJ8pwCLcBGAs/w1200-h630-p-k-no-nu/September%2B2018.jpg]<http://tdtemcerts.blogspot.sg/>

Turritopsis Dohrnii Teo En Ming's Academic
Qualifications<http://tdtemcerts.blogspot.sg/>
tdtemcerts.blogspot.sg
Historical Records, Office of the Grand Historian



[3] https://www.scribd.com/user/270125049/Teo-En-Ming
===END SIGNATURE===

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
<yan at storm.ca>