ubuntu 26.04 lts install failed with grub install

I tried this two times - same result. I selected 'report' in the install screen. I have 3 SSD's, nvme0n1 is Ubuntu 22.04. nvme1n1 is a disk, used for backup. nvme2n1 is the partial Ubuntu 26.04 LTS install. > sudo fdisk -l /dev/nvme[0-2]n1 Disk /dev/nvme0n1: 931.51 GiB, 1000204886016 bytes, 1953525168 sectors Disk model: Samsung SSD 980 PRO 1TB Units: sectors of 1 * 512 = 512 bytes Sector size…