Michael Lange composed on 2017-12-02 22:33 (UTC+0100): > On Fri, 1 Dec 2017 23:07:15 -0500 Dan Norton wrote:
> (...) >> > What bootloader was installed -- LILO, GRUB, GRUB2, whatever? And, >> > where? >> GRUB2 to sda1. > I did not read this thread in detail, so maybe this has already been > discussed, but I have just now been thinking, shouldn't grub go > to /dev/sda instead of /dev/sda1 ? OP made it clear his is a multiboot context. Grub on sda works for a first installation, but guess what happens with the next and subsequent installations if you allow same with them? Just as traditionally experienced with re-installation of Windows, each subsequent installation tries to, and typically does, usurp control from the former, followed by updates to the prior at least attempting to wrest it back, often with annoying, and time consuming, and sometimes fatal, consequences. With the complication that is multiboot, some kind of administrative intervention is inevitably needed. The option the OP chose is to intervene ab initio. When Grub is installed to an MBR primary partition, and the MBR contains legacy boot code, and a boot flag is appropriately set, and the same policy is maintained, a subsequent installation makes no attempt to usurp control from the first. Ultimate boot control remains with whichever partition contains the boot flag, a very simple thing to change when desired from any kind of boot. EFI and GPT were supposedly created in part to simplify hosting multiple operating systems, but as OP's threads prove, the real-world post-BIOS/MBR firmware and partitioning schemes at best seem not to make multiboot any simpler. -- "Wisdom is supreme; therefore get wisdom. Whatever else you get, get wisdom." Proverbs 4:7 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/
