Resize existing parititon Ubuntu
 

Hi everybody

I have only a single main partition and a swap space on my laptop running ubuntu.

I want to install another system on my computer so I need to create another partition. I tried using a disk utility provided by ubuntu but I get the error "disk is already in use".

Is there a way to make that partition smaller and create another one without erasing my data?

Many thanks!
Jaber

To resize the partition u have to unmount the disk. What u can do is run the live cd of ubuntu and resize it by using gparted. Or better use the livecd of PartedMagic and resize the partition.

Boot your computer with SystemRescueCD, run GParted there and manage your partitions.
But be sure to backup your data first.

I used Gparted and made bootable on a usb stick.
It worked.
Thanks!!