How to install partioning tool

I try to partition my system-Disk. I have 1TB-Disk, used maybe 10MB

How can I resize the System-Partition and add one new? Tried to install partman but it seems not to be in the repos. And will i be able to add the new partition as a share?

Grüße aus Berlin

Micha

Geiler Tip, ging aalglatt!

Habe eine Partition "system" angelegt, wo ich die online partition verlinke ... Danke