On Wed, 29 Nov 2017 13:07:01 -0500 Dan Norton <dnor...@mindspring.com> wrote:
> On 11/16/2017 03:13 PM, Felix Miata wrote: > > Joe composed on 2017-11-16 19:27 (UTC): > > > >> I see the date of the page is 2015, > > IIRC, that 2015 update was all about updating and/or replacing > > broken links. > >> Multiple OSes will still use one overall bootloader, which may or > >> may not redirect to other bootloaders. It is common, therefore, to > >> use a single physical partition for /boot, common to all *nix > >> OSes.... > > Mounting the same single primary partition as /boot to all *nix > > OSes invites virtually the same trouble that installing Grub to MBR > > causes. Absent user intervention, each OS thinks it owns the space, > > so at updates times, each stomps on whatever is there at the time, > > eventually exhausting its freespace with a multitude of diverse > > kernels and initrds. Only one OS, or no OS, should mount the > > bootable physical partition to /boot. Others can either have their > > own bootloader installed to their own / filesystem, or be used > > without their own bootloader. > > > > On most of my PCs, the bootable primary is never mounted to /boot. > > I manage it manually myself, providing direct loading of kernels > > and initrds, as well as chainloading entries, and configfile > > entries, the latter two used primarily when prior kernels are to be > > booted, the former for most booting. > > > > For someone doing multiboot the first time, it's easiest, if not a > > requirement, for the first installation to have the primary mounted > > to /boot. The subsequent installations either need to have no > > bootloader or bootloader only installed to /; or, the newer can be > > configured to mount the primary on /boot, and the original, prior > > to its next boot, preferably immediately prior to starting the new > > installation, reconfigured to not mount the primary on /boot, not > > manage the bootloader installed there, and relocate its content to > > its own / filesystem. > > After POST, the following appears: > > [...] > PXE-E53: No boot filename received > PXE-MOF: Exiting PXE ROM. > ERROR:No boot disk has been detected or the disk has failed. > > Isn't that because the primary is not mounted to /boot? > > Sorry to be so dense, but how do I "have the primary mounted > to /boot?" > > > > Multiboot setup is complex, one of the reasons why virtualization > > became popular. There is no single right way to get where you want > > to go. For a beginner it helps a lot to have an extra PC to do the > > learning, and for doc access while doing the installations and > > configurations on the other. :-) >
