Comment 8 for bug 571893

I experienced this same problem, with two harddrives installed (one with windows only and one with ubuntu and some ntfs storage space) after an upgrade to 10.04 through the update manager i could see windows 7 in the grub listing however it would not boot, i got the blinking cursor screen. The workaround linked to by Takkat (see post #7) worked for me as well and I am now able to boot as normal, actually faster than it did before with the grub update now installed and successfully working. Thanks for finding the workaround Takkat!!