Resizing an NTFS partition

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Note: Please ensure you have a backup before attempting this.

Most systems that are purchased already have Windows installed on it, and some people would prefer not wipe it off completely when doing an Arch Linux installation. Therefore, it is useful to resize the existing Windows partition to make room for a Linux partition. This is often accomplished with a Live CD or bootable USB thumb drive.

For Live CDs the typical procedure is to download a .iso file, burn it to a CD, and then boot from it. InfraRecorder is a free (as in GPL3) CD/DVD burning application for Windows which fits the bill nicely. If you would rather use a bootable USB media instead, UNetbootin is a handy cross platform tool also available for Windows.

There are a number of bootable CD/USB images avaliable:

  • System Rescue CD is a good tool to have, and works seamlessly in most cases. Once booted, run qt_parted and the rest should be fairly obvious.
  • GParted Live is a small bootable GNU/Linux distribution for x86 based computers. It enables you to use all the features of the latest versions of the GParted application.
  • Arch Linux "Core Image" ISOs come with parted and ntfsprogs. Text based and not very pretty, but functional.

If you already have Arch Linux installed on your system and simply want to resize an existing NTFS partition, you can use the parted and ntfsprogs packages to do it. Optionally you can use the GParted GUI after installing gparted package from [extra].