Re: windows 7 dual boot with 12.04 lts problems
You need to set your BIOS to boot the 1.5 TB drive. The mbr of that drive is undoubtedly where the grub boot loader is if you had your normal boot drive disconnected during install. Although grub should be able to find partitions by UUID, there have been times when it seems to base that on the physical disks, so it might have an issue trying to find things that were on the primary (only) drive during install, which are now on the secondary drive.
But first just see if changing CMOS setup to boot your 1.5 TB drive instead of your 64 GB drive works. Then run "sudo update-grub", so it will find Windows and also be able to boot that from there.
I sort of do that. Windows and one Ubuntu is on my 1 TB primary drive, but I boot everything from grub on my secondary 80 GB SSD which has another Ubuntu version. I did not disconnect any drives during install, I just made sure that I put grub on the drive I wanted it on. The first drive just has a regular Windows mbr because there was a time when some Windows programs (like Dell DataSafe) would store data in what they "thought" was an unused part of the mbr (which was actually being used by larger grub2). But I think grub has now isolated those areas of the mbr where known Windows programs are known to store data.
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