UEFI booting from a DVD with MSI Z170A

mikeo

mikeo

mikeo

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Hi

Just done a PC upgrade (see sig). Though I do now have a Samsung SM951 with Windows 10 installed on it (last stage of my upgrade). Seems to work OK but now see that it doesn't use the traditional MBR but EFI to boot.

And can't seem to get the system to boot from a DVD. I have a number of DVD's for fault finding / recovery etc. (EG. ACRONIS True Image bootable rescue disk). All created previously under Windows 7.

Put my DVD drive at the top of the boot order and reboot. The DVD drive spins a couple of times but nothing happens.

Is this something to do with the fact that my new board uses a UEFI BIOS?

And if so... how on earth do I get it to boot from a DVD????

Any ideas anyone?
 
mikeo said:
Thanks but it's the first thing I tried.

Think this is something to do with the UEFI BIOS and bootable DVD's.
Click to expand...

My understanding is the dvd that you boot from has to have been created under a uefi environment ie on a os that was installed as a uefi boot os

It is a bit of a bugger
 
mikeo said:
Hi

Just done a PC upgrade (see sig). Though I do now have a Samsung SM951 with Windows 10 installed on it (last stage of my upgrade). Seems to work OK but now see that it doesn't use the traditional MBR but EFI to boot.

And can't seem to get the system to boot from a DVD. I have a number of DVD's for fault finding / recovery etc. (EG. ACRONIS True Image bootable rescue disk). All created previously under Windows 7.

Put my DVD drive at the top of the boot order and reboot. The DVD drive spins a couple of times but nothing happens.

Is this something to do with the fact that my new board uses a UEFI BIOS?

And if so... how on earth do I get it to boot from a DVD????

Any ideas anyone?
Click to expand...

I'd remake the various bootable utilities you require on USB flash drives.

Optical media is almost an antique at this point, support for it will continue to decrease.
 
REDNINEAPB said:
My understanding is the dvd that you boot from has to have been created under a uefi environment ie on a os that was installed as a uefi boot os

It is a bit of a bugger
Click to expand...

Yes I've now noticed that my windows 10 install has some sort of efi boot partition, rather than the normal MBR one.

So is this something that I could have controlled when I installed windows 10?

Or is efi boot the way to go and I just have to (as suggested above) re-make my bootable tools on USB? I'm assuming in my ignorance here, that I would need one USB stick for each bootable utility?

Just when you think after 30 years of tinkering with pc's, that you have some idea of what you are doing, along comes Mr change ☺
 
Right... the plot thickens.

The BIOS on the MSI Z170A gaming M7 looks like it should be capable of booting from "either" UEFI or legacy type devices/media. They are certainly all there in the boot list. But if you try and move anything in front of the UEFI disk (pointing to the EFI boot partition for my Windows 10 install) then on re-booting, it seems to do nothing (locked up by the look of it). This even applies if you try and move the UEFI USB to the front of the queue!!! So could not even re-boot with my Windows 10 USB retail stick!!!

So.. as an experiment. I changed the following setting in the BIOS
"Windows 8.1/10 WHQL support" to enabled.
Made sure "fast boot" and "secure boot" disabled.
And on booting back into the BIOS, only the UEFI devices were being shown in the boot order. Moved the UEFI USB to the front of the queue and lo and behold, it booted to this rather than my UEFI Windows 10 boot partition.

Then tried moving the UEFI DVD/CD to the front of the queue and wonders will never cease, it booted from my Acronis True Image recovery disk.

So... starting to wonder if there is a bug in the current BIOS (running latest 1.5 at the moment) here.

Upshot is, that it looks like I'm good to go now.

Not sure if there is any downside to running in UEFI mode only. Time will tell I suppose.

Life.... one great adventure.
 
Last edited:
Ok I eventually got this far however when I tried to copy the recovery image over it was having non of it as the boot of the image was non uefi boot record ie was mbr
 
I've now had a closer look to see what Acronis TI 2016 has actually backed up and it would seem to have backed up all three partitions on the OS disk (the Samsung SM951).
IE. Recovery, EFI System and Primary data partition. So if it recovers these (as it should) then it would be fine I suspect.
 
mikeo said:
Question. Are we talking of acronis true image here? And if so, which version?
Click to expand...

ACRONIS TRUE image 2014

My circumstances were

I bought a new ssd and updated the bios at the same time when 8 put the ti recovery disc in to restore the back up it would not play ball as the new bios had defaulted to uefi boot
That's what my problem was
I resolved by eventually sticking with uefi boot and re installing as thinking all new mb are heading to uefi boot then re imaging sorry typing as I walk to work
 
russell664 said:
I would suggest a USB stick in all fairness. :)
Click to expand...

Anything from now on will be on USB. Obviously a lot quicker this way.

At least it all works now. But the board in combined uefi\legacy mode should in fact work. All uefi and legacy devices are in the boot order in this mode. But it plain does not work correctly. Not worried now though, as all now working fine in uefi only mode :)
 
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