Le 12/05/2018 à 21:51, David Collier a écrit :
On Sat, May 12, 2018 at 12:41 AM Pascal Hambourg <[email protected]>
wrote:
The
one you need first is grub-efi-amd64-bin. It won't run grub-install
automatically. After all is fine, you can install grub-efi-amd64 which
replaces grub-pc and runs grub-install automatically.
Make sure you run grub-install from the distribution, not the one you
built from source.
Ok, I uninstalled locally built grub and installed both grub and
This is not what I said. I did not say to install package grub. grub is
a virtual package provided by package grub-legacy, the obsolete version
of GRUB (aka GRUB 1). It does not support EFI boot.
grub-efi-amd64
Do you mean grub-efi-amd64-bin ? I said to install grub-efi-amd64-bin at
first, not grub-efi-amd64. Also grub-efi-amd64 conflicts with grub-legacy.
from ubuntu, then again booted from USB stick in EFI mode and entered
chroot.
This time grub-install would not recognize the --target command line option:
(...)
root@ubuntu:/# grub-install -v
grub-install (GNU GRUB 0.97)
^^^^
This is GRUB 1 aka GRUB legacy, from package grub-legacy.
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 ?
it did accept --target command line option, but still complained
about /usr/local/lib/grub/x86_64_efi/modinfo.sh not existing, so I mapped
/usr/lib/grub/x86_64_efi into /usr/local/lib/grub and at that point
grub-install invocation finally succeeded and created that path in
/boot/efi you mentioned earlier.
A lot of trouble and hack just to correct your mistake.
I am still at loss though - what do I do next, to get Windows showing as
an entry in the grub boot menu?
Why should I waste time writing instructions if you don't follow them ?
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.
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