Today I was reading a lot about the boot process. I have win7 ubuntu multiboot, grub2 is the loader. My question is: Is it safe to delete System Reserved (BOOTMGR in it), as I use GRUB2? I mean: Does the GRUB2 loads win7 itself, or does it load the BOOTMGR which then loads win7?
2 Answers
The user who asked the question Dual Boot Issue, Windows 7 64 bit Ubuntu 12.10 64 bit confirmed (further down in the comments section) that Grub2 can load Win7 even after the System Reserved partition is deleted.
But perhaps you can first make a backup of the partition, format it and make sure it works for you as well before deleting the partition.
1It did work, but this is how: 1)Deleted the System Reserved. Windows 7 stopped booting at all. 2)Ran Win7 CD - Recovery -> Startup Recovery (or something) multiple times (I had to do it 3 times). 3)In GRUB I marked the Win7 partition as 'boot'.
From here I tried again the Win7 recovery in combination with adding manualy an entry to GRUB Customizer, until GRUB somehow evetually was able to find by itself the win7.
