On Mar 12, 2014, at 6:39 AM, Timothy Murphy <gayleard@xxxxxxxxxx> wrote: > Tim wrote: > >>> I want to upgrade Windows XP on my laptop to Windows 7, >>> but I'd like to be sure that I can get back to Linux afterwards. >>> (I'm sure Windows installation will over-write the MBR.) > >> Some people modify the Windows bootloader, so that *it* can be used to >> boot Linux. You *can* have the Linux bootloader set up to choose >> between booting Windows and Linux, *and* the Windows bootloader set up >> to choose which to boot. > > That's interesting. > I've always regarded the Windows bootloader as a black box, > my occasional journeys into the Windows Registry having proved disastrous. > > But I don't see how both can be on offer - > do they use the MBRs of different drives? No, in this case the Windows boot manager chainloads GRUB rather than the usual way which is for GRUB to chain load Windows. By configuring them to have options chainload each other, it's a circle. Whose code occupies the MBR bootstrap region is the bootloader that comes up first. Chris Murphy -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
