Have here a dual boot Linux and WIN 10 with two separate harddisks.
On BIOS, secure boot and CSM is disabled. Installed Linux and WIN 10 separately with the other harddisk removed from the system.
Then, with both harddisks installed, boot into Linux and did an update-grub. WIN 10 is found and placed into the grub menu.
Works fine, but I hear, that this way (two EFI partions) is not the 'normal' way. Let me ask, what speaks against having separate EFI partitions?
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Two EFI partitions
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Head_on_a_Stick
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Re: Two EFI partitions
Nothing really (AFAIK), GRUB can handle that, as you have found.kalle123 wrote:what speaks against having separate EFI partitions?
Even with EFI_STUB booting it is possible to configure the NVRAM entries to boot from different ESPs.
If you were running systemd-boot then you would have to share a single ESP between the operating systems but only weirdos like me use that
deadbang