When I run grubconfig I get this error:
completions of a device/filename.
│ grub> root (hd0,3) │
│ Error 22: No such partition │
│ grub> setup (hd0) │
│ Error 12: Invalid device requested │
│ grub> quit │
│ Sorry, but the attempt to install GRUB has returned an error, so GRUB │
│ has not been correctly installed. You'll have to use a bootdisk to │
│ start your machine instead. It may be possible to get GRUB working by │
│ editing the /boot/grub/menu.lst file and reinstalling GRUB manually.
Now I know I have these partitions, which are not showing up: