Score:0

Dual Booting ubuntu 20.04 and windows 10 no longer working

cn flag

I had a working Windows 10 Thinkpad E530c, then I installed Ubuntu 20.04 using Grub. This setup worked fine.

But I used one to many commands in Ubuntu and messed up my Ubuntu side and could not fix the errors. I decided I would reinstall Kubuntu over Ubuntu. When I tried to reinstall via Kubuntu live USB disk, there were no partitions visible. I can not remember the command, but it said that I had an MBR, but not a GPT.

So I ran a command to create a GPT. My PC no longer boots up. I tried boot repair and it said

GPT detected. Please create a BIOS-Boot partition (>1MB, unformatted filesystem, bios_grub flag). This can be performed via tools such as Gparted.

The boot repair wrote a log file which can be viewed here.
Any help would be appreciated.

oldfred avatar
cn flag
This is where it is important to know UEFI/gpt from BIOS/MBR. Microsoft has required vendors to install Windows in UEFI/gpt mode since 2012. You have UEFI hardware which can then boot either UEFI or BIOS, but you must be consistent. Your Windows partitions look like a typical BIOS install which requires MBR. Your conversion to gpt then broke Windows. Not sure if you can just convert back to MBR and repair Windows. And then install Kubuntu in BIOS boot mode. Better to totally reinstall both Windows & Kubuntu in UEFI mode, and restore all your data from your backups.
mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.