I have dual boot Lenovo laptop g580. I have already Windows 7 and Ubuntu 12.04 32-bit installed .
I want Ubuntu 12.04 64 bit that's why I tried to reinstall Ubuntu 12.04 64 bit in place of 32 bit.
After installation I got restart now. Then I got:
grub rescue > with invalid ETL
Even I am not getting Windows boot also.
Please help me to get bootloader.