On 08/29/2015 02:11 AM, Chris Murphy wrote:
> > when I installed ubuntu after that, ubuntu became the
default, and grub
> > had 3 entries for fedora, plus windows 10, plus ubuntu.
The central problem is that the distros are on a continuum among
ambivalence, incompetence, and malicious when it comes to multiboot
cooperation. And GRUB upstream has done a lot of Rube Goldberg
innovation to try to solve this problem but then ultimately it all
breaks.
For multiboot, GRUB has failed the distros, the distros have failed
GRUB by effectively forking it, and each other. And even though
proposals have been made to fix this problem, the bottom line is, the
distros could not possibly care less than they do now, or it'd get
fixed.
I did notice a difference between the grub process in ubuntu & fedora..
in ubuntu I remember getting a " booting in insecure mode" message
BEFORE the grub menu came up. With fedora grub, that message
disappeared. other differences might be so obvious..
> > when I rebooted into fedora, and installed the latest
kernel, THEN I had
> > issues with grub, because I didn't know how to update the grub that was
> > installed, and I didn't know how to update the fedora grub & have the
> > system use that to boot from.
You'd have to provide detailed information about machine state at each
step of the way in order for an autopsy to be possible, and know what
the cause of the problem was. All i can say is, you shouldn't have to
update the Fedora grub.cfg manually, this is done fairly reliably by
grubby. But only the Fedora grub.cfg is so modified. The Ubuntu
grub.cfg which also contains Fedora boot entries, does not. And
conversely when you update Ubuntu kernels, only its grub.cfg is
updated, not Fedora's.\
that was my initial problem. my last OS install was
ubuntu, which took
over the grub process. THEN I installed a new fedora kernel, and I
started the thread trying to get the new fedora kernel into the grub
menu.. but first I had to either redo the ubuntu grub.cfg OR change grub
to the fedora grub config.. After a few messages I got the efibootmgr -o
to change the booting sequence to fedora default, that only took 2
days.. then trying to figure out the how & why of all this
EFI/ubuntu/fedora/grub.cfg nonsense...
> > every time you boot into a specific distro, update the system, and
> > install a new kernel, well, then grub needs to be updated. MY problem
> > is, I want to keep ubuntu updated, but I always want fedora grub to be
> > the default.. I don't think they thought about all these situations when
> > they created grub...
Or did but didn't think it would be like running over the user's foot
with a backhoe.
that about covers it:)
If you weren't confused, I'd have been surprised.
thanks, in the beginning
I thought I was sane, but this process is
destroying my sanity slowly but surely..
> > I thought I had my partitions written down, so I would know what I had
> > where... but this /boot/efi and /EFI/fedora & /EFI/ubuntu has totally
> > screwed my mind up.
> > I am running fedora, but I mounted my ubuntu partition to look at the
> > EFI/ubuntu folder but.... it wasn't there.
It won't be, the Ubuntu /boot/efi/EFI directory is on sda1, so is
Windows. The Fedora one is on sda8. This can be consolidated, but it's
really the least of your problems, even if it reduces the confusion
that ensues from having two EFI system partitions.
I'm going to have to go back & look... (booted in fedora currently)
gparted shows /dev/sda1 as EFI system partition fat32 500Mb not mounted
/dev/sda8 EFI system partition mounted as /boot/efi 95Mb
/ = /dev/sda10
/home=/dev/sdb6
ubuntu / = /dev/sdb8
--
Paul Cartwright
Registered Linux User #367800 and new counter #561587