@Fernando

Oh gosch, you found the root of the problem. It is mainly because I'm a stupid jerk, I was so sure, that this is a NVM model, that I've overseen, that it is a SATA one. Sorry for stealing your time and thank you for the help. I'll buy another SSD, the NVM one this time and give it another try.....

@Fernando quick question - I have a Samsung 840 initialized as MBR drive which boots as Legacy (not UEFI) from my bios. I just got a 1TB nvme drive (Crucial P1) and wanted to use Acronis (or the likes) to clone my existing SSD onto the nvme, then patch the Bios so I can boot from NVME.

Would that work or does the nvme need to be GPT?

Also, my mobo is a Gigabyte Z77 UP5 and the bios is a modded one from 2013. How can I check it doesn't already have the nvme boot mod? I uploaded the modded bios file here: https://dl.dropbox.com/s/4fs21gq34urmqgg/F12a-mod.rom

I see, thanks for the info. I'll mod the bios using your guide in order to allow booting off nvme, but i still want to be able to clone my Windows. What if I initialize it as GPT and then clone partitions from my old MBR drive? I really don't want to reinstall Windows ...

Zitat von Fernando im Beitrag #4788

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Doing a fresh install of Win10 onto the NVMe SSD in UEFI mode is the safest and easiest way to get full NVMe support. Furthermore is the change of the system drive a very good opportunity to get rid of all the previously collected and stored garbage.

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Yes, my question was: if I copy (clone) partitions from an MBR disk to a GPT disk, will the GPT boot into the system without other tricks needed?

Assume I have a bootable MBR disk and an empty GPT disk. Doesn't the GPT disk need to be made bootable? I have several partitions on this MBR disk, some which are Linux, and I use grub2dos to boot into multiple operating systems, ISOs, etc. I'd like to preserve that too if possible (grub4dos supports GPT)

The MBR disk is already bootable.
The conversion would replace the MBR with the EFI partition - it is converting an MBR boot drive to a GPT boot drive.

As I've never used Linux (other than via an external USB) I can't answer those points.

Wait, you're proposing of cloning the existing MBR disk first as MBR on the other disk, then converting using that tool? To clarify: I have a 512 GB SSD which is MBR (bootable in legacy mode, with stuff on it), and a new, empty 1 TB NVME disk (which I can configure in any way I desire).

No,

mbr2gpt will convert your MBR drive to GPT format (hence the name "mbr to gpt").
It will automatically create the EFI partion replacing the MBR.

This tool is a one-way-only option - you CANNOT use it to go back to an MBR disk.

What I'm suggesting is convert your current drive to GPT (AFTER TAKING A BACKUP/IMAGE) and test all the functionality on that before cloning to the NVMe drive.
This makes sure your Linux options also work the way you want.

Is that clearer?

I have modified my ASUS P8H67-M PRO rev. 1 who's last BIOS update was in 2013 (over a half decade) with the NVME4 module and it now boots to NVMe as PATA. So fast...

Happy to share the ROM if anyone needs it. If u want me to make one for your BIOS send me your ROM and $10 USD to my Paypal and I'll build you one. Only asking for a fee so Im not bombarded without any incentive to help.

Spyderydne

Zitat von aquarc im Beitrag #4790

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Yes, my question was: if I copy (clone) partitions from an MBR disk to a GPT disk, will the GPT boot into the system without other tricks needed?

Assume I have a bootable MBR disk and an empty GPT disk. Doesn't the GPT disk need to be made bootable? I have several partitions on this MBR disk, some which are Linux, and I use grub2dos to boot into multiple operating systems, ISOs, etc. I'd like to preserve that too if possible (grub4dos supports GPT)

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@Fernando:
Hello Fernando !
Thanks for the reply :)

There is two screen, I hope you have everything you need to identify my problem, don't hesitate if it's not the case.

For information, I have two HD in my computer, the first one is a SATA SSD 128go, and the second is a classic SATA 1to.
My new SSD is a Samsung 970 EVO NVMe M.2, and I have a sticker on the back of my computer who said "M.2 2280 SLOT SUPPORT SATA SSD ONLY"...

I hope it's possible to make it compatible, I could not return it now :D

Thank you again, have a great day :)
benCat

EDIT by Fernando: Unneeded fully quoted post replaced by directly addressing to its author (to save space)