[Solved] Grub won't install: Dual boot MX-21 March KDE & Win 10

[Huckleberry Finn]

... within the "chroot",
do also run

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update-grub

Edit: Been Ninja'd :)

[asinoro]

Check if this tutorial helps, it is for already installed system having problem with grub.
https://forum.mxlinux.org/viewtopic.php ... rget=blank

[serviteur]

I run Update-Grub in Chroot, and it boots on MX 21.

Command:

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demo@mx1:~
$ sudo chroot-rescue-scan

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

[sudo] password for demo: 
===============================================================================
Starting chroot-rescue-scan
===============================================================================
Scanning partitions ...
Scanning directories ...
Only one Linux system was found
                                                                                                 
Please select a Linux system to visit                                                            
  Distro           Date        Dir      Device Arch   Label                                      
= MX 21 Wildflower 2022-04-10  rootMX21 sda4   64-bit rootMX21                                   
> Rescan all partitions for Linux systems                                                        
> Quit                                                                                           
Press <Enter> to select the highlighted entry                                                    
Use 'r' to redraw, 'q' to quit                                                                   
                                                                                                 
Visiting distro MX_21_Wildflower_
Directory: /mnt/chroot-rescue-scan/rootMX21  Device: sda4
Use the exit command or <ctrl>-d to return to main menu
===============================================================================

(MX_21_Wildflower_) Tue Apr 12 11:10:20 /
chroot> mount -a

(MX_21_Wildflower_) Tue Apr 12 11:10:28 /
chroot> update-grub
Generating grub configuration file ...
Found theme: /boot/grub/themes/linen/theme.txt
Found linux image: /boot/vmlinuz-5.10.0-12-amd64
Found initrd image: /boot/initrd.img-5.10.0-12-amd64
Found Windows Boot Manager on /dev/sda1@/EFI/Microsoft/Boot/bootmgfw.efi
done

(MX_21_Wildflower_) Tue Apr 12 11:11:38 /
chroot> exit
exit
===============================================================================
Scanning directories ...
Only one Linux system was found
                                                                                                 
Please select a Linux system to visit                                                            
  Distro           Date        Dir      Device Arch   Label                                      
> MX 21 Wildflower 2022-04-10  rootMX21 sda4   64-bit rootMX21                                   
> Rescan all partitions for Linux systems                                                        
> Quit                                                                                           
Press <Enter> to select the highlighted entry                                                    
Use 'r' to redraw, 'q' to quit                                                                   
Press q again to quit                                                                            
demo@mx1:~

FEW QUESTIONS:

1-Why did the command: sudo efibootmgr -v didn't show the EFI's NVRAM entries:

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demo@mx1:~
$ sudo efibootmgr -v
No BootOrder is set; firmware will attempt recovery
Boot0001* Notebook Hard Drive   BBS(HD, ,0x0).......................................................................
Boot0004* Notebook Hard Drive   BBS(HD, ,0x0).......................................................................
Boot0005* USB Hard Drive 1 -  USB DISK 3.0      BBS(HD, ,0x900).......................................................................
demo@mx1:~
$ 

2- How to Change Grub Menu Defaults? When the computer boots up in a dual boot system continues to boot with the default entry in the grub.cfg file, which is set to be MX 21,

3-

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How to convert ext4 filesystem to f2fs filesystem Without Losing Data?

[fehlix]

I run Update-Grub in Chroot, and it boots on MX 21.

Good, so it appears you may consider this thread to marked as [Solved],

1-Why did the command: sudo efibootmgr -v didn't show the EFI's NVRAM entries:

My best guess would be: Your EFI-firmware is buggy.

2- How to Change Grub Menu Defaults?
When the computer boots up in a dual boot system continues to boot with the default entry in the grub.cfg file, which is set to be MX 21,

Some options can be changed using MX Tools -> "MX Boot Options"

3-

Code: Select all

How to convert ext4 filesystem to f2fs filesystem Without Losing Data?

IMHO, you can't convert ext4 -> f2fs, you would need re-format the partition to f2fs.
Note: Better do always open a new topic with new questions, to avoid polluting a thread with completely different issues.

[serviteur]

I run Update-Grub in Chroot, and it boots on MX 21.

Good, so it appears you may consider this thread to marked as [Solved],

1-Why did the command: sudo efibootmgr -v didn't show the EFI's NVRAM entries:

My best guess would be: Your EFI-firmware is buggy.

2- How to Change Grub Menu Defaults?
When the computer boots up in a dual boot system continues to boot with the default entry in the grub.cfg file, which is set to be MX 21,

Some options can be changed using MX Tools -> "MX Boot Options"

3-

Code: Select all

How to convert ext4 filesystem to f2fs filesystem Without Losing Data?

IMHO, you can't convert ext4 -> f2fs, you would need re-format the partition to f2fs.
Note: Better do always open a new topic with new questions, to avoid polluting a thread with completely different issues.

Well received, and thanks for your assistance!