Pascal, thank you for your patience ;),
On Sun, May 13, 2018 at 12:40 AM Pascal Hambourg <[email protected]>
wrote:
> Le 12/05/2018 à 21:51, David Collier a écrit :
> > at this point I decided to run grub-install from the locally built
> > directory,
>
> Didn't you say that you uninstalled the locally built GRUB ?
I uninstalled it from /usr/sbin but not removed the build products in the
source tree.
> Uninstall grub-legacy and check that you have at least grub2-common and
> grub-efi-amd64-bin installed. Or just install grub-efi-amd64.
> After EFI boot, run os-prober to check that Windows is detected.
> Run update-grub to include it in GRUB's menu.
I think I followed your instructions closer this time, here is what i get
inside chroot:
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
root@ubuntu:/# dpkg -l | grep grub
rc grub 0.97-29ubuntu68
amd64 GRand Unified Bootloader (Legacy version)
ii grub-common 2.02~beta2-36ubuntu3.17
amd64 GRand Unified Bootloader (common files)
ii grub-efi-amd64 2.02~beta2-36ubuntu3.17
amd64 GRand Unified Bootloader, version 2 (EFI-AMD64
version)
ii grub-efi-amd64-bin 2.02~beta2-36ubuntu3.17
amd64 GRand Unified Bootloader, version 2 (EFI-AMD64
binaries)
rc grub-pc 2.02~beta2-36ubuntu3.17
amd64 GRand Unified Bootloader, version 2 (PC/BIOS
version)
ii grub2-common 2.02~beta2-36ubuntu3.17
amd64 GRand Unified Bootloader (common files for
version 2)
root@ubuntu:/# os-prober
/dev/sdc2@/efi/Microsoft/Boot/bootmgfw.efi:Windows Boot Manager:Windows:efi
/dev/sde1:unknown Linux distribution:Linux:linux
grub-probe: error: cannot find a GRUB drive for /dev/sdf1. Check your
device.map.
root@ubuntu:/# update-grub
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT
is set is no longer supported.
Found linux image: /boot/vmlinuz-4.13.0-41-generic
Found initrd image: /boot/initrd.img-4.13.0-41-generic
Found linux image: /boot/vmlinuz-4.13.0-39-generic
Found initrd image: /boot/initrd.img-4.13.0-39-generic
Found linux image: /boot/vmlinuz-4.13.0-38-generic
Found initrd image: /boot/initrd.img-4.13.0-38-generic
done
root@ubuntu:/#
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note the error reported by os-prober. Now there is no grub menu at all
during boot, the machine boots directly into Ubuntu (was I supposed to run
grub-mkconfig at some point)?
(Also, in the command line grub now shows two partitions instead of one,
but my experiments with chainloading Windows all failed.)
BTW, I finally figured out how EFI vs legacy boot works - it turns out the
the BIOS in menu mode shows two options for the USB stick, one for legacy
boot and one for EFI boot. I did not pay attention earlier, they get buried
among other options there. I guess I would have saved myself a lot of
trouble if I installed ubuntu originally in EFI mode.
thank you,
-dc
>
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