this post was submitted on 25 Mar 2024
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Windows never knows the other partition exists and leaves it intact.
Could you give me more detail for step 3?
Don't even have to do that. Install windows first, then install Linux with refind bootloader on preferably a separate disk. Done
You do need a separate EFI, even though linux finds EFI, otherwise windows update trashes it randomly and why the meme we see here exists, with separate EFI windows doesn't know about it. You can shutdown windows mid update and boot linux, then reboot back to windows and update will continue. Siloed System
That's literally what I did yesterday with my method. It works, Windows has never trashed it
It will, thats why that meme exists.
Not during typically reboots, but when some windows update or autofile repair happens it thinks it is the only OS on that partition and does what it likes.
Nope, ran it like this for over 5 years. Definitely rebooted during updates / did some crap
Then you have been lucky, because most peoples experience with grub EFI on Windows partition is windows will eventually scrub it.
I'm not using Grub
Makes no difference of what bootloader, just that windows thimks it owns that partition
I installed arch so that didn't happen.
Not how it works
Yes. When you install Linux it will auto detect the Windows EFI partition and put boot stuff there by default, but then windows comes along and will randomly trash that setup. So during install don't go with the suggested option, instead use the partitioning tool to creat another small EFI boot partition elswhere on disk, leaving Windows EFI and OS paetitions as is. Also create your root and home partition(s). Install to those partitions, then Linux should prompt for Probe Foreign OS and add a chainloader entry to your grub menu. This entry, when selected, points grub to windows EFI partition ID and hands off the boot process to Windows. Windows is unaware it has been chainloaded. As long as you set BIOS to load directly from the LINUX EFI entry then you will boot to Grub with Linux/Windows Dual option...But technically it is not a true Dual Boot, it is a sequential boot I guess. I have had this for 7 years on same install and boot between W10 and Linux daily. Windows has never touched my Linux EFI.