My debian8 was originally located on the sda8 disk, everything worked
after several tricks with the size of partitions from under windows7, debian8 moved to disk (hd0,2) and grub is loaded only after console commands
set root=(hd0,2) set prefix=(hd0,2)/boot/grub insmod normal normal Tell me how to configure the bootloader so that during each boot you do not enter these commands?

/etc/default/grubheader. You can manually fix //boot/grub/grub.cfg. PS: this is the second rude, right? - Fat-Zersudo update-grubcommand did not help - user254893