Re: Request for help - Debian UEFI not possible after starting windows
Thanks, I'll check it out.
On Mon, Apr 13, 2020 at 8:34 PM <Mario.Limonciello@dell.com> wrote:
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> Dell Customer Communication - Confidential
>
>
>
> Try making the directory /boot/efi/EFI/boot. Then just copy everything from /boot/efi/EFI/Debian into that directory and then rename grubx64.efi to bootx64.efi in that directory.
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>
>
> From: Robert Gomułka <robert.zbigniew.gomulka@gmail.com>
> Sent: Saturday, April 11, 2020 3:08 AM
> To: Limonciello, Mario
> Cc: debian-efi@lists.debian.org
> Subject: Re: Request for help - Debian UEFI not possible after starting windows
>
>
>
> [EXTERNAL EMAIL]
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> Good morning everyone,
>
> I have checked few things.
>
> 1. I have Debian version 10.1
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> 2. I have installed grub-efi-amd64-bin (it was installed previously, not now). After trying to install grub-efi-amd64 I get message that it is not available but referred by another package.
>
> So I can't reconfigure no-bin version.
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> 3. Inside /boot/efi/EFI/Debian I have grub.cfg and grubx64.efi. I don't know how meaningful are those names, but can't tell what to copy, either.
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>
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> Could you provide further advise?
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>
>
> Regards, Robert
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>
>
> Pon., 6 kwi 2020, 20:17 użytkownik <Mario.Limonciello@dell.com> napisał:
>
> Dell Customer Communication - Confidential
>
> > -----Original Message-----
> > From: Robert Gomułka <robert.zbigniew.gomulka@gmail.com>
> > Sent: Saturday, April 4, 2020 1:43 PM
> > To: debian-efi@lists.debian.org
> > Subject: Request for help - Debian UEFI not possible after starting
> > windows
> >
> >
> > [EXTERNAL EMAIL]
> >
> > Good evening,
> > I couldn't find better place to ask, but apologize if that's not proper
> > forum.
> > I appreciate all the work Debian maintainers put in maintaining whole
> > (U)EFI thing. I am not familiar with its concepts, so please bear with me.
> > I have employer owned laptop (Dell 3541). I'd like to use it, but in order
> > to not abuse anything on their disks, I have installed Debian on external
> > SSD (pendrive). I have done it year ago on different laptop without UEFI,
> > so I had to convert it to UEFI when new computer had UEFI in place. I've
> > thought I did it correctly (re-partitioning, installing grub efi, ...) The
> > problem is - after booting windows Debian is not visible any more and
> > can't be started.
> > The operations I perform are:
> > 1. Start and use windows without Debian pendrive inserted.
> > 2. Reboot system from Debian Live (another USB stick) 2a. I press F12 in
> > bios to select boot from Debian Live 2b. My ordinary "debian" entry in
> > bios boot up is not available (not visible) 3. Debian Live is started 4. I
> > insert my Debian pendrive 5. I "rescue" it by mounting its filesystem
> > following instructions from here: http://emmanuel-
> > galindo.github.io/en/2017/04/05/fixing-debian-boot-uefi-grub/
> > (just a subset - mount, chroot, grub-install, update-grub) 6. I restart
> > system 7. I am able to select "debian" in boot up bios menu 8. I can boot
> > up Debian successfully 9. Unless I boot up windows (without my Debian
> > pendrive inserted), which leaves me at 2
> >
> > Do you have any idea of how to debug/fix it? Even if Windows somehow
> > messes my bios settings, I still can boot from Debian Live in UEFI mode.
> > But can't do the same for my Debian pendrive. Is there something I can do
> > to make my pendrive appear the same way as Debian Live?
> > Fixing it each time is inconvenient...
>
> On your Pendrive copy the efi/boot/shimx64.efi to efi/boot/bootx64.efi
>
> Then you should see your pendrive as a bootable entry every time it is plugged
> in.
>
> This is the so called 'removable drive' path that the firmware should be checking
> for dictating it's bootable.
>
> >
> > A friend of mine uses very similar setup, but with Ubuntu - in his case
> > menu entry doesn't disappear after booting to Windows.
> >
> > I don't remember Debian version currently, probably current stable. If it
> > matters, I can provide it (along with other information).
> >
>
> As another solution, what if you try to copy your bootloader into the ESP
> of the disk on the machine and use that?
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