Summary
I moved partitions around to install Ubuntu 22.04 using UEFI. Now my Windows 10 partition does not work. I used boot repair and the results are here.
https://pastebin.ubuntu.com/p/JM5w4QXGkQ/
Details
Ubuntu 20.04 told me I could now upgrade to 22.04. I said OK and it did a bunch of stuff, but I got errors so I decided to do a clean install.
The existing ubuntu was on an SSD partition. There were also partitions for Windows 10 and Ubuntu 16.04.
As I started the process, I learned I needed to make a UEFI partition to install Ubuntu 22.04. I found I could not do that and keep the Windows and Ubuntu 16 intact. So I moved them to an HDD using the 'dd' command. I installed Ubuntu successfully (now I could let it do what it wanted to on the SSD). It complained about the partition table being in error. I adjusted the BIOS for this computer so that it would use EFI to boot but it had a compatibility mode that I also turned on. This machine is a Dell precision M6700. I ran the boot repair disk several times. This is the current GRUB menu.
Ubuntu
Advanced options for Ubuntu
Windows 10 (on /dev/sdb1)
Ubuntu 16.04 LTS (16.04) (on /dev/sdb5)
Advanced options for Ubuntu 16.04.6 LTS (on /dev/sdb5)
Currently, the machine boots Ubuntu 22.01 and 16.04. But it does not boot Windows. I get this error message.
error: can't find command 'parttool'
error: can't find command 'drivemap'
error: invalid EFI file path
Press any key to continue...
The details of the boot repair are here.
https://pastebin.ubuntu.com/p/JM5w4QXGkQ/
Thank you for your help.
Mark Weber
