I have a backup disk that was dual boot windows 7 and OS 13.2. I had to do a windows image restore from my main disk as windows got broken.
I have further done a upgrade to windows 10 (seemed a good idea to try that out). So I have a disk that still has all the OS 13.2 partitions but with windows 10. As the 13.2 was originally installed straight from the install DVD, it boots from /dev/sda1 (shown from working dual boot master disk)
inux-bdyp:~ # fdisk -l Disk /dev/sda: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disklabel type: dos Disk identifier: 0xc6ba34c2 Device Boot Start End Sectors Size Id Type /dev/sda1 * 2048 821247 819200 400M 27 Hidden NTFS WinRE /dev/sda2 821248 420337663 419516416 200G 7 HPFS/NTFS/exFAT /dev/sda3 420337664 420950015 612352 299M 83 Linux /dev/sda4 420952064 1953523711 1532571648 730.8G 5 Extended /dev/sda5 420954112 686782463 265828352 126.8G 83 Linux /dev/sda6 686786560 1953521663 1266735104 604G 83 Linux
(for information sda3 is /boot, sda5 is / and sda6 is /home)
The same is for the non dual booting drive, where windows image has obvious removed the dual boot capacity on sda1.
So my question is how do I get dual boot back please?