Solved installation grub2 error

[sofasurfer]

I boot a thumb drive with a debian ISO. It asks me if I want to use the normal grub installer or the grub2 installer. I can run the "normal" installer but if I use the grub2 installer I get the following errors...
error: attempt to read or write outside of disk loop
error: you need to load the kernel first

Whats happening and what should I do? I'm thinking I should just settle for the "normal" install. What do you think?

 

[sofasurfer]

PS. My boot mode is set to legacy and secure boot is "off".
My current Ubuntu installation is running on legacy and is using grub2.

 

[Deleted member 210773]

You can use Rescatux to recovery the GRUB https://www.supergrubdisk.org/rescatux/
You click on restore grub.

 

[sofasurfer]

You can use Rescatux to recovery the GRUB https://www.supergrubdisk.org/rescatux/
You click on restore grub.

No, I can install with grub. I want to know why I get errors when I choose to use grub2. At this point I am unable to use grub2 and I should be able to.

 

[Deleted member 210773]

No, I can install with grub. I want to know why I get errors when I choose to use grub2. At this point I am unable to use grub2 and I should be able to.

This error typically indicates that GRUB is unable to access the necessary files to boot the operating system, often due to incorrect disk or partition configurations. To resolve it, you can try booting from a live USB, checking your partitions, and ensuring that the GRUB configuration is correct, or manually loading the kernel from the GRUB rescue prompt.
The errors "attempt to read or write outside of disk 'hd0'" and "you need to load the kernel first" typically indicate issues with the GRUB bootloader configuration or disk setup.

Common Causes

• Disk Size Limitations: GRUB may be unable to read files if the disk size reported by the BIOS or RAID controller is incorrect. This often happens with large disks or certain RAID configurations.
• Incorrect GRUB Configuration: If GRUB is not pointing to the correct kernel or root partition, it will fail to load the operating system.
• Missing or Corrupted Kernel: If the kernel files are missing or corrupted, GRUB cannot load them.
• Secure Boot Issues: Secure Boot settings in the BIOS can prevent GRUB from loading the kernel.

Solution	Description
Check Disk Size	Ensure that the BIOS or RAID controller is reporting the correct disk size. If necessary, consider switching to UEFI mode, which handles larger disks better.
Reinstall GRUB	Boot from a live USB and reinstall GRUB. Use commands like grub-install and update-grub to ensure GRUB is correctly configured.
Manually Load Kernel	From the GRUB rescue prompt, you can manually set the root and prefix, then load the kernel. Example commands: set root=(hd0,gpt1) set prefix=(hd0,gpt1)/boot/grub insmod normal normal
Check Secure Boot	Disable Secure Boot in the BIOS settings to see if it resolves the issue.
Verify Kernel Files	Ensure that the kernel and initrd files are present in the /boot directory. If they are missing, you may need to restore them from a backup or reinstall the operating system.

By following these steps, you can troubleshoot and potentially resolve the GRUB errors you are encountering.

 

[sofasurfer]

My current installation, Ubuntu, is using grub2 and BIOS Legacy. The install I am attempting on a different drive, Debian, must therefore use Legacy.
Question...Can I just install the Debian with Grub and then later convert it to Grub2?

 

[Trml]

Yes, you can. I did not know this, but Debian even has scripts to aide the transition from grub v1 to v2: https://wiki.debian.org/Grub

 

[sofasurfer]

I found the solution. I installed using debian netinstall iso. instead of debian live iso. Perfect install. I now have grub2 and the transfer from file to thumb drive only took a couple of minutes. Netinstall iso for me from now on.