On Monday 05 Dec 2011 21:58:44 Grant Edwards wrote: > On 2011-12-05, Michael Mol <mike...@gmail.com> wrote: > >> You can only have one primary bootloader, either grub from Gentoo or > >> grub2 from Mint, it cannot be both. But it looks like that's what you > >> do have. Seeing as you intend to drop Mint eventually, you must > >> uninstall grub2 and all it's files from Mint. > > > > Not *exactly* true. > > It is for the usual definition of "primary bootloader" as the one that > is loaded and run by the BIOS. > > > Grub can chainload any bootloader that's visible to BIOS. At minimum, > > that means you could have grub on /dev/sda > > (primary bootloader) > > > chainload grub on /dev/sdb > > (secondary bootloader). > > > I'm uncertain if it means you could chainload a bootloader stored in > > the first 512 bytes of /dev/sda8, but I suspect so. > > You're right, you can. Though to get grub2 to install on a partition > like /dev/sda8 instead of in the MBR you have to use the --force > option or you'll get some incomprehensable error message when you try > to do the 'setup' command.
Last time I installed Ubuntu on a machine that had a different primary OS/bootloader I chose for it to be installed on the Ubuntu partition and there was not problem with it. It was GRUB2 Then I chainloaded it from the primary bootloader. The OS can do the same, but this means that he can either: a) Install Gentoo's GRUB to the MBR and chainload from Gentoo's grub.conf Mint's /dev/sda8 boot loader (assuming that he has installed the Mint bootloader to /dev/sda8 instead of the MBR); or b) Install Gentoo's GRUB in Gentoo's partition, or some other partition (e.g. a boot partition specific to Gentoo) and chainload this from Mint's GRUB2. -- Regards, Mick
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