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Pitysha Posted messages 14 Status Member -  
Pitysha Posted messages 14 Status Member -
Hello everyone,

It is out of the despair that takes over me that I come to seek help.
Here is my problem regarding the partitions of my disk. Following the installation of Ubuntu, the partitioning of my disk is as follows:

( I use GParted )
( Partition / file system / mount point / size / used / unused / flag )

sda1 / ext2 / /boot / 243 MB / 140 MB / 103 MB / boot
sda2 / extended / - / 931 GB / - / - / -
sda5 / lvm2 pv / ubuntu-vg / 931 GB / 931 GB / 0 bytes / lvm
sda6 / ntfs / - / 43 MB / 3 MB / 40 MB

I wanted to install Windows, so I have a bootable Windows 10 USB key that works properly and when I want to install it, there are 2 partitions displayed that are neither usable because formatted with an incompatible file system (Windows requiring NTFS).

I then restart my PC (which boots with Ubuntu) and try to create an NTFS partition, the one of 43 MB above, and the problem is that it is too small. I therefore want to extend it by removing space from sda5 but I cannot because the partition is used at 100% (see the numbers above).

In short, how can I reduce the space used by the sda5 partition to be able to shrink it and increase the size of my NTFS partition?

(I specify that NO my disk is not crammed full, there are 10.6 GB used on a 1 TB disk: there are 919.4 GB free)

Thank you in advance to those who will take their time for my problem.

Configuration: Linux / Chrome 47.0.2526.73

1 answer

  1. jns55
     
    Hello,
    You won't be able to touch partition sda5 as it's an LVM partition.
    Why did you choose dynamic partitions during the installation of Ubuntu?
    This system has its advantages, of course, but it also has its disadvantages.
    If you really want to free up space, I see no other choice but to completely delete sda5 and replace it with standard partitions, which would mean reinstalling Ubuntu... And if you do that, install Windows first, it will make dual-boot easier.
    https://doc.ubuntu-fr.org/lvm
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    1. Pitysha Posted messages 14 Status Member
       
      Thank you for your quick response.

      To be frank, I am absolutely not a fan of Ubuntu, which is why I want to reinstall Windows. If installing it, given the mess of my partitions, leads to the permanent uninstallation of Ubuntu, I will be better off because that's what I want to do.

      All I want to know is how to completely clean this disk and calmly reinstall Windows. What I'm afraid of, and that's why I'm on this forum, is messing things up, rendering my disk unusable, and no longer being able to install either Windows or Ubuntu permanently.

      Could you guide me on how to do things properly?

      Thanks again for this quick response.
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    2. jns55 > Pitysha Posted messages 14 Status Member
       
      You need to launch gparted in live mode (from the Ubuntu DVD, for example) and delete all the partitions. Then, you can launch the Windows installation DVD, and it should handle the available space on its own.
      Or, from gparted (still in live mode), you can create the partitions you need and format them to ntfs, and you will be able to choose which partition to install Windows on when prompted by the installer.
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    3. Pitysha Posted messages 14 Status Member
       
      Should I format my PC first?
      Because Ubuntu is installed on my PC, I do not boot it from a USB drive.
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    4. ElementW Posted messages 5690 Status Contributor 1 293
       
      which leads to the reinstallation of Ubuntu...
      Incidentally, if he has an external storage device with enough space, he can avoid reinstallation by copying what's on the partition (using a 
      tar
      to preserve the rights of the folders/files).
      Finally, I think.
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    5. jns55 > Pitysha Posted messages 14 Status Member
       
      To delete or format partitions, you need to launch gparted in a live-cd or live-usb session of Ubuntu (the Ubuntu DVD that was used for installation, for example). You cannot do this in your installed session on the hard drive because you cannot modify a partition that is in use.
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