I have a company laptop that came with Windows 7 installed. I shrunk the single NTFS filesystem that spanned the entire hard disk so that I could then install Ubuntu on a new second partition. I did this, GRUB was installed by the Ubuntu installation process, and the Master Boot Record updated to point to GRUB when the laptop is booting up. Great, nothing special there.
My employer has forced hard drive encryption upon me. They're happy for me to continue to have a dual boot system but the hard disk encryption software has overwritten the Master Boot Record. When the laptop boots I must enter my decryption details, after which it is "hard coded" to continue the boot process with the NTFS partition (Windows 7).
Is it possible to install GRUB at the start of the NTFS partition so that, after booting the laptop to the initial hard drive decryption screen, it then boots into GRUB and I can still choose to boot into Windows or Ubuntu?
Installing the hard disk encryption software hasn't altered my partitions— it's a non-intrusive install in that all data on the disk is preserved; Linux is still installed on a separate partition. Using "EXT2 Volume Manager", I can mount my Ubuntu install when I'm booted into Windows 7 and see that my files are all intact. Dual booting is permitted by my employer but not supported by the internal IT department so I have to maintain that myself.