My laptop doesn't support UEFI. As shown:' $ sudo efibootmgr EFI variables are not supported on this system.' However, to create a bootable 'boot repair' liveUSB requires UEFI - there does not seem to be a BIOS alternative. Is this true?
When my whole system totally disappeared after an unsuccessful attempt repartitioning using GParted, I managed to rescue everything without resorting to my backups using a liveUSB with Ubuntu then downloading and running 'boot repair'. This rescued my system almost miraculously, but a liveUSB with 'boot repair' would have been so much easier.
I have created a liveUSB with 'boot repair' from the downloaded ISO and formatted as FAT32 but my system, dual boot Ubuntu and Windows 7, says it is not valid to boot, presumably because it is not UEFI; I also tried to format the live USB as UEFI but again it won't load. I hasten to add that I have a liveUSB with Ubuntui and another with Clonezilla, both of which will load from USB.