[arch-general] efibootmgr doesn't change boot order!

[u34 at net9.ga]

Peter K Haokip via arch-general <arch-general at archlinux.org> wrote:

> thanks for the reply,
> I am able to change the boot order from the BIOS menu.  It works A-okay
> from there, I am trying to accomplish that with efibootmgr.
> 
> could you cite any link where I could read about it in details ? where the
> bootx64.efi file will be stored if I install it in NOT IN PORTABLE
> mode(?)?  cuz that would help me know whether the grub is installed in
> portable or none portable mode.

> 
> Also, would be nice if you could provide  any source where I can read about
> how I make my motherboard detect regular boot entries (instead of the
> /Efi/boot/bootx64.efi)
> 
> 
> thanks,
> 


As far as I am aware of, /Efi/boot/bootx64.efi is mandated by the efi
spec. It could be that there is a 2nd location for the bootx64.efi file.
Or that the 2nd location is mandated by the spec. I guess searching the
internet for bootx64.efi will show more decesive information. And the
archwiki, too.

--
u34


> 
> On Mon, 28 Dec 2020, 15:45 Maarten de Vries, <maarten at de-vri.es> wrote:
> 
> > On 28-12-2020 10:42, Peter K Haokip via arch-general wrote:
> > > I read an forum entry from nearly 6 years ago about am efibootmgr bug
> > that
> > > Doesn't let you change the boot order on a multi OS system if you have
> > arch
> > > linux as the default OS.  Had some users report this as well in other
> > > forums.
> > > Now i am facing the that problem in my system with arch ubuntu and
> > windows.
> > >
> > > when i change the boot order , it shows the change 'temporarily' but
> > when i
> > > restart it boots the default (Arch linux Grub ) and the  change
> > disappears.
> > >
> > > I faced this issue last month and gave up on it since I couldn't find any
> > > detailed resource on this on the net.
> > > This list may be my last hope.
> > >
> > > If anybody could give some direction , would be much appreciated.
> > >
> > > regards,
> > > khaithang39
> >
> > Hey,
> >
> > It could be a motherboard problem. Sadly I've seen more motherboards
> > with weird bugs in their UEFI implementation than without. You could try
> > to change the boot order through the motherboard firmware interface
> > (often called "the BIOS" even if that isn't technically correct anymore)
> > and see if that helps.
> >
> > Another thing that may have happened is that you installed grub as
> > portable bootloader. It will be called `efi/boot/bootx64.efi` on the EFI
> > system partition if that happened. A bootloader under that name is
> > auto-detected by the motherboard, even if you didn't add a boot entry
> > for it manually. Perhaps your motherboard always favors such bootloaders
> > over the normal boot entries.
> >
> > If this is the case, you could install grub as non-portable bootloader
> > by not passing `--removable` to `grub-install`, and then delete
> > `efi/boot/bootx64.efi`. Alternatively, you might also be able to
> > configure your motherboard to prefer regular boot entries before running
> > `bootx64.efi` from that partition.
> >
> > I hope this helps,
> >
> > -- Maarten
> >
> >