0

So, I want to create a partition of 400 GB of my 1 TB HDD to install Windows 10 on it. I could usually use FDisk but I believe it requires me to have unmounted the disk. I could create a bootable USB and then create the partition, but I already have Windows 10 ready to install on my USB and I can not overwrite that with Ubuntu as I already troubled by friend to make me the Windows USB (I could do it myself if someone were to suggest a good software. WoeUSB & UNetBootin did not work for me and Rufus is only avalible on Windows). Another thing I could do was go to the Windows installation thingy and open cmd then use diskpart to make the partitions, though that is not an option either because it gives me this "No more free extent could b e found". Any help is appreciated, if you want clearification ask in the comments. English is not my first language so if you could edit this to correct my spelling and grammar I would really appreciate it.

TLDR: Need to make a disk partition without unmounting, can not use a bootable USB

Solution: For anyone else who might be searching about this. You cant do it.

Mysterious K
  • 3

2 Answers2

0

Mounted partitions are actively in use by the system. It is extremely likely that if you go messing around with your partitions while the system is running that you will lose your data/working system unless you were using something like LVM on an already installed system. For example, Gparted will show that a mounted partition is locked by displaying a small key icon next to it and not allowing you to make changes to it.

What is currently on the 1TB HDD? Is it blank?

Matt McCann
  • 11
0

(Wanted to add this as a comment, but I can't)

If anyone else having a similar problem should come across this, this might have been a good solution too:

How to modify partitions without a live USB/CD

And here is a detailed guide on how to boot (other) ISO files from hard drive: https://help.ubuntu.com/community/Grub2/ISOBoot

It is even possible to use this method for installing Ubuntu without a USB drive or DVD (as long as GRUB is present and working)

(Hope it may be useful for somebody else)

user79
  • 43