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My father gave me his old ThinkCentre from his office that has a Lenovo IS6XM Motherboard installed in it so I figured I could make use of it. I decided to install Ubuntu 18.04.3 LTS on it, as the only OS, but no matter how hard I try the motherboard refuses to detect the HDD as a bootable drive, simply calling it by the HDD's name. When I force it to try and boot off of it, I just get a message saying I don't have an operating system.

I plugged the same HDD into my main desktop and it could boot off of it perfectly.

Rex8112
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  • With drive in system, boot Ubuntu live installer & run this: May be best to see details, use ppa version with your live installer (2nd option) or any working install, not older Boot-Repair ISO: Please copy & paste link to the Boot-info summary report ( do not post report), the auto fix sometimes can create more issues. https://help.ubuntu.com/community/Boot-Repair – oldfred Aug 22 '19 at 16:19
  • I apologize for the late response but I got the boot repair report. http://paste.ubuntu.com/p/SW5qFnwKmr/ – Rex8112 Aug 23 '19 at 10:18
  • Some early UEFI implementations used description as part of UEFI boot. That was not allowed per UEFI. And only valid description was "Windows Boot Manager". Your Windows entry is invalid & can be replaced with one that boots grub/shim. Use this to remove Windows entry: https://askubuntu.com/questions/63610/how-do-i-remove-ubuntu-in-the-bios-boot-menu-uefi & option IV here to create new Windows entry that boots Ubuntu: https://askubuntu.com/questions/486752/dual-boot-win-8-ubuntu-loads-only-win Your ESP is sda1, so defaults work ok. Otherwise added parameters required. see man efibootmgr – oldfred Aug 23 '19 at 14:44
  • It worked! Thank you so much. – Rex8112 Aug 23 '19 at 20:56

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