Shrinking the Proxmox Installation Partition

[z400]

As you can see, I installed Proxmox on my entire M.2 SSD.



So I've essentially burned my entire 500GB.
Can I subsequently reduce the size, for example to 50GB, to then create another ZFS partition to run containers on?
I assume this won't be possible without a clean install, right?

I would greatly appreciate any helpful tips.

Martin

 

[news]

no you can't, use simple zfs dataset for the new setup.
zfs create rpool/<new-dataset>