On Fri, 11 Jan 2019 21:11:53 -0500 Michael Stone <mst...@debian.org> wrote:
> On Fri, Jan 11, 2019 at 04:56:07PM -0800, Patrick Bartek wrote: > >On Fri, 11 Jan 2019 07:13:30 -0500 Michael Stone <mst...@debian.org> wrote: > >> On Thu, Jan 10, 2019 at 03:53:11PM -0800, Patrick Bartek wrote: > >> >Plus, I > >> >want to have a common-shared /boot partition for possible future > >> >upgrades or expansions. > >> > >> This is a really bad idea, and will cause far more trouble than it can > >> possibly save in the future. You do need one EFI partition per system, > >> and you can have different directories there for different OSs. > >> > > > >You misunderstood as I was too general in my post about partitioning. > > > >I WILL have a dedicated EFI System Partition (ESP) formatted FAT32 > >marked with the "boot" flag AS WELL AS a dedicated partition with a > >mount point of /boot /boot/efi will be the mount point for the ESP. As > >far as I've read UEFI booting firmware, etc. does not require this. > >It's a Linux recommendation. But I could be wrong: UEFI/GPT is new to > >me. > > I'm not really sure what you're trying to say here. Yes, the UEFI spec The reason I wanted a dedicated boot partition was related to possible future implementations, if needed, of encryption and LVM. Now, after more research, I've concluded I have no need for LVM, but encryption is a possibility in the future. Need more research. Only played with it years ago on an old notebook, but the installer set it all up. > doesn't talk about where to put the efi partition in a linux system, > because it isn't a linux spec. In theory you can put it anywhere or > nowhere (it's not used in day-to-day operation at all). But, if you > intend to put grub on it using the normal install process, it needs to > be in /boot/efi or the install won't work. (By default it will be in > /boot/efi/EFI/debian.) It is possible to manually put it somewhere else, > or to use a directory other than debian. I'm not sure why you would > decide to mount it elsewhere, as I can't see any benefit to doing so. ^^^^^^^^^^^^^^^^^^^^^^^^^^^ I didn't. Wanted dedicated ESP mounted on /boot/efi as recommended. And wanted /boot to be a separated partition for the reason noted above, and not a directory in /. > Putting grub in a directory other than "EFI/debian" does allow for > multiple OSs to have their own boot loaders which can be started from > the UEFI boot menu. (E.g., you could have EFI/stretch, EFI/centos7, > EFI/sid, etc.) In this case I would still keep the efi partition mounted > on /boot/efi to reduce long-term confusion. I'd also add new directories > instead of trying to keep multiple versions of debian from overwriting > the debian directory. I have been unable to find so far any detailed documentation on how to manually set up a Linux EFI booting system -- single or mulit-boot. What goes where. Even what to use. Etc. > In addition to the efi partition, where the boot loader goes, you also > need a /boot partition where the kernel and the grub menu configuration > go. (Actually, in most cases this does not need to be a separate > partition, but you do need a /boot directory.) You talk about sharing > the /boot partition and this is what I said was a really bad idea: have > a separate /boot per install or you'll have multiple installs stomping > on each other's boot configs. > > Just about everything above can in theory be worked around or done > differently, but you'll be way outside of what you can expect support > for at that point. > Thanks for your input, suggestions and recommendations. B
