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Re: 'error: invalid signature' when booting Windows 10


From: David Collier
Subject: Re: 'error: invalid signature' when booting Windows 10
Date: Wed, 12 Dec 2018 09:21:45 -0800

On Tue, Dec 11, 2018 at 10:42 PM Pascal Hambourg <address@hidden>
wrote:

> Le 12/12/2018 à 06:43, David Collier a écrit :
> > On Tue, Dec 11, 2018 at 11:34 AM Pascal Hambourg <address@hidden
> >
> > wrote:
> >
> >> Le 11/12/2018 à 08:03, David Collier a écrit :
> >>>
> >>> grub_cpu         i386
> >>> grub_platform  pc
> >>
> >> This means, as I suspected, that the active GRUB flavour is GRUB BIOS
> >> booted in BIOS/legacy mode, not GRUB EFI. GRUB BIOS is unable to
> >> chainload an EFI executable such as the EFI Windows boot manager
> >> bootmgfw.efi. If you want to chainload it, you must boot in EFI mode
> >> with a GRUB EFI instance, as you did previously when the chainloading
> >> worked.
> >
> > I am pretty sure that I was able to boot the same linux kernel as now and
> > windows on the HD, when using the grub instance which was on another SSD
> > (which is now retired).
> >
> > I guess I can try putting it all back together again to collect values of
> > environment variables in a working setup - will this help?
>
> Sure, but it is not mandatory. Do not wait to put the old drive back to
> post the current disk layout. The report from bootinfoscript may be
> helpful too.
>
> here is information collected using gdisk:

https://pastebin.com/WnJE0jdY

thank you,
-dc

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