Howto: Easy GRUB Bootloader Repair without external media

[geazzy]

i think this is seved for reinstallation

[cornelius1]

i need your help!

i just updated my 10.04 64 bit ubuntu, now the bootloader is not working anymore.

i checked the netbootin tool but no victory.

it always freezes "running "embed /boot/grub/fat_stage1_5 (hd0)"" ...

tried all variations but without any luck.

my other os are win7 and xp. i choosed the start with grub at the boot.

any help?