Lenovo Thinkcentre M73e won't boot from HDD

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Revision as of 13:56, 27 October 2023 by Heiko (talk | contribs)
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I own (at the time I write this) two Lenovo Thinkcentre M73e:

  • with a Intel Pentium CPU
  • with a Intel i3 CPU

The Problem

The PC kept telling me: 

1962 No Operating System Found

i3 (Model XXX)

The i3-CPU-PC won't boot, in any circumstance, the newly installed Linux. BUT, it would boot if I booted from CD first and chose to boot from the harddisk from there.

I've read countless Webpages..but nothing worked.


HP and Sony only boot Windows. So we have many work arounds, some work better than others.

Since you do not have any Windows you can just create the Windows efi boot file with the Windows name. Then the UEFI will think it is booting Windows but really boots grub.

You will have to recreate in the efi partition the Windows folder, a boot folder under Windows and copy grubx64.efi into that folder and rename it to bootmgfw.efi.

mount /dev/sda1 /mnt cd /mnt/EFI

use ls to see if mounted correctly ls -l mkdir Microsoft mkdir Microsoft/Boot cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Microsoft/Boot/bootmgfw.efi

Most systems also have a /Boot folder and can boot grub from that using a hard drive entry. mkdir Boot

cp /mnt/EFI/ubuntu/grubx64.efi /mnt/EFI/Boot/bootx64.efi

Your ls -l should then have this in the efi partition:

/EFI/Boot /EFI/Microsoft/Boot /EFI/ubuntu

You have a large 2TB drive. System will run better with a smaller / (root) partition and then larger /home or /mnt/data partition(s). With a large root, grub, kernels & system files may be anywhere in root or anywhere on drive. So drive has to jump all over 2TB to find its files. I expect it has ways to optimize that, but with a smaller / then it does not have that much space to find files from.




Pentium (Model XX)

This one worked just fine. Installed, booted, all working great. When I was debugging the i3-issue, I switched disks, and then this machine also ran into the same problem.

What fixed it for me: I set the MBR-flag in YAST Partitioner. Or did I remove it? Dang, don't remember. Must try it again and write it down here.

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