Boot repair output at /p/bwHsMHZGwV . As in the case with my other Lenovo desktop, the output from the latest version of boot repair says something about moving something controlled by GRUB to another location. However, no step-by-step instructions are provided. In both cases, PCs arrived with Win 11 preinstalled, and I added Ubuntu, only to have the systems loose boot later on. The problem does not occur with my Lenovo laptop and my Dell laptop.
John
The most recent pastebin is Ubuntu Pastebin. Again, no instructions are provided to do what bootrepair says needs to be done.
John
Can you please check your links.
Says
Paste not Found
I found the paste, and fixed the link above.
The boot script seems to indicate that GRUB was repaired and reinstalled.
First step to try is reboot and enter BIOS then look for Boot Options, Boot Order or whatever it is called on your machine. See if there is an entry for Ubuntu and set it as first boot priority.
Save and exit to continue normal boot. Are you able to access your install?
Thank you for your help. Your suggestion worked. It got the Ubuntu side working, and it came up with the usual Ubuntu start window where you can choose Ubuntu, Ubuntu options, Windows boot manager, and UEFI options. Win 11 still does not boot. The banner comes up and then disappears.
John
Since you have a UEFI install of both windows and ubuntu and boot entries for both showing, have you tried accessing the BIOS one time boot options and booting windows from there. Your boot repair output shows the windows files necessary to boot but if they are corrupted, you cannot fix the closed source, proprietary windows code from Linux so you will need to download the windows iso and write it to a USB. It should have a repair option when you boot it.