[PlanetCCRMA] dual boot mess (solved)

Sat Feb 19 12:40:10 PST 2022

Managed to sort the mess (sort of). I was able to repair the EFI partition
with windows tool
following these instructions
https://www.dell.com/support/kbdoc/en-uk/000124331/how-to-repair-the-efi-bootloader-on-a-gpt-hdd-for-windows-7-8-8-1-and-10-on-your-dell-pc

I did lose the fedora entries as a result. So now I'm installing fedora 35
(again). But, at least I didn't have to also install win from scratch.
thanks for suggestions.

On Sat, 19 Feb 2022 at 17:44, Oded Ben-Tal <obental at gmail.com> wrote:

> yes I did.
> I think the problem is the there is no EFI/Microsoft directory
>
> On Sat, 19 Feb 2022 at 17:43, Rafael Franco <rafael.etc at gmail.com> wrote:
>
>> menuentry 'Windows 10' {
>>     search --fs-uuid --no-floppy --set=root B26A64746A64376F
>>     chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
>> }
>> in /etc/grub.d/40.custom  file but obviously go the wrong variables in
>> there...
>>
>> Did you run "grub2-mkconfig -o /boot/efi/EFI/fedora/grub.cfg" as sudo
>> after that?
>>
>> Rafael de Lima Franco
>> github.com/rafaeletc
>> Telefones: +55 19 98937-7220
>> Limeira - SP - Brasil
>>
>> "O fato de me perceber no mundo, com o mundo e com os outros me põe numa
>> posição em face do mundo que não é a de quem não tem nada a ver com ele.
>> Afinal, minha presença no mundo não é a de quem a ele se adapta, mas a de
>> quem nele se insere. É a posição de quem luta para não ser apenas objeto,
>> mas sujeito também da história."
>> Paulo Freire, Pedagogia da Autonomia
>>
>>
>> Em sáb., 19 de fev. de 2022 às 14:13, Oded Ben-Tal <obental at gmail.com>
>> escreveu:
>>
>>> I also tried using boot-repair to fix things (I could boot from the
>>> boot-repair usb unlike the systemrescue one). The boot repair didn't fix
>>> anything however, it was able to locate the windows system, while when i
>>> run os-prober from the installed fedora it doesn't see the windows.
>>> I also tried grub2-install (from the fedora i have running) but that
>>> didn't work either:
>>> error: this utility cannot be used for EFI platforms because it does not
>>> support UEFI Secure Boot.
>>>
>>> any clues in there?
>>>
>>> On Sat, 19 Feb 2022 at 15:29, Oded Ben-Tal <obental at gmail.com> wrote:
>>>
>>>> thanks.
>>>> I created the system rescue usb but my computer (thinkpad) won't boot
>>>> from it. When I go into the boot options i see it as generic device but
>>>> when I select it, it doesn't do anything. It does have a live system on it
>>>> (created with fedora media writer).
>>>> The grub.cfg files is in indeed under boot/grub2. I did not edit it
>>>> (there is a strong advice not to). I did try  adding a custom section
>>>> (through /etc/grub.d files) but that ends up with errors.
>>>> Any other suggestions for salvaging the situation?
>>>> Oded
>>>>
>>>> On Sat, 19 Feb 2022 at 06:54, metachromatic <metachromatic at gmail.com>
>>>> wrote:
>>>>
>>>>>   You have likely messed up your grub setup. Don't worry, you can
>>>>> repair grub.
>>>>>   Download and run the system rescue iso:
>>>>> https://www.system-rescue.org/
>>>>>
>>>>>   In particular, read and follow the instruction in the section
>>>>> "Repairing a damaged grub":
>>>>>
>>>>> https://www.system-rescue.org/disk-partitioning/Repairing-a-damaged-Grub/
>>>>>
>>>>>
>>>>>
>>>>> On 2/18/22, Oded Ben-Tal <obental at gmail.com> wrote:
>>>>> > Hello
>>>>> > (and sorry for sending a not-audio-specific question but after much
>>>>> > googling I'm lost for answers)
>>>>> > I updated my computer to fedora 35 and managed to somehow mess up
>>>>> the boot
>>>>> > option. When I try to boot into windows I get 2 grub errors
>>>>> > - no such device for the UUID of the disk with windows on it
>>>>> > -/EFI/Microsoft/Boot/bootmgfw.efi not found
>>>>> >
>>>>> > The windows partition is still there and the UUID is the correct one
>>>>> (this
>>>>> > is copied from the fstab file I use to mount it on to fedora).
>>>>> > I tried to solve the problem by adding
>>>>> > menuentry 'Windows 10' {
>>>>> >     search --fs-uuid --no-floppy --set=root B26A64746A64376F
>>>>> >     chainloader (${root})/EFI/Microsoft/Boot/bootmgfw.efi
>>>>> > }
>>>>> > in /etc/grub.d/40.custom  file but obviously go the wrong variables
>>>>> in
>>>>> > there...
>>>>> > any help?
>>>>> >
>>>>> > thanks
>>>>> >
>>>>>
>>>>
>>>>
>>>> --
>>>> Oded Ben-Tal
>>>> obental.wixsite.com/main
>>>> http://soundcloud.com/odedbental
>>>> PI Datasounds, datasets and datasense <https://musicdatasense.org/> research
>>>> network (2022/23)
>>>>
>>>
>>>
>>> --
>>> Oded Ben-Tal
>>> obental.wixsite.com/main
>>> http://soundcloud.com/odedbental
>>> PI Datasounds, datasets and datasense <https://musicdatasense.org/> research
>>> network (2022/23)
>>> _______________________________________________
>>> PlanetCCRMA mailing list
>>> PlanetCCRMA at ccrma.stanford.edu
>>> https://cm-mail.stanford.edu/mailman/listinfo/planetccrma
>>>
>>
>
> --
> Oded Ben-Tal
> obental.wixsite.com/main
> http://soundcloud.com/odedbental
> PI Datasounds, datasets and datasense <https://musicdatasense.org/> research
> network (2022/23)
>

-- 
Oded Ben-Tal
obental.wixsite.com/main
http://soundcloud.com/odedbental
PI Datasounds, datasets and datasense <https://musicdatasense.org/> research
network (2022/23)
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