Windows 10: converting gpt to mbr is bad or can i restore the disk to gpt if its mbr with gdisk or fdisk

converting gpt to mbr is bad or can i restore the disk to gpt if its mbr with gdisk or fdisk

:)

 

Convert only one partition on the disk from MBR to GPT

Step 2
Convert MBR to GPT without data loss

 

convert MBR to GPT disk

convert mbr to gpt

There is a way to convert mbr to gpt without data loss. clean command deletes all datas inside the disk, so dont use this command

boot with windows dvd , and get into command prompt

type diskpart , find the disk number , which is need to convert mbr to gpt

say disk number is 0

exit diskpart

type below command in command prompt

mbr2gpt /convert /disk:0

wait for some minutes to complete , once you get commpleted successfuly means, exit and close ,

shutdown the pc , remove windows dvd

important

After the disk has been converted to GPT partition style, the firmware must be reconfigured to boot in UEFI mode.


Make sure that your device supports UEFI before attempting to convert the disk.

 

Converting MBR to GPT

I finally got a new array running, 3TB currently. One disk already had some data and there was an option to create a new array without losing that data. I figured that would safe me time (it didn't) so did it. Converting the whole crap took about 40 hours (not exaggerating) which was rather unexpected. Now I have a 3TB array which needs to be GPT, not MBR. Though converting to GPT can only be done on empty disks. Google so far doesn't come with some tool that can convert disks without losing data, would anyone know of a tool that can do such a thing? I don't feel like breaking the array, copying all data, converting the disk, copying everything back, restoring the array. It would take about 300 years to do that.