I'm creating a zone as per: omnios.org/setup/firstzone? but I forgot to set the RAM amount. Now when I go back to zonecfg, it says syntax error when I try to "set ram=4G". Do I have to delete the whole zone and start over? How to edit settings?

jayjwa , here’s an example for setting RAM to an existing zone. No need to delete and start over…

root@server:~# zonecfg -z zone_name

zonecfg:zone_name> add capped-memory

zonecfg:zone_name:capped-memory> set locked=4G

zonecfg:zone_name:capped-memory> set physical=4G

zonecfg:zone_name:capped-memory> end

zonecfg:zone_name> verify

zonecfg:zone_name> commit

zonecfg:zone_name> exit

root@server:~# zoneadm -z zone_name reboot

Thanks. Basically I'm trying this, but at the zonecfg cmd line: blog.daveeddy.com/2022/09/19/void-linux-bhyve-image-on-omnios and with a different image. It's confusing because it says "ram" there and also "cdrom" but you can't set either by those terms.

In that article, the utility zadm is used while my example use native tools.

Attaching an ISO would then be under zonecfg:name:fs> then?

For a bhyve or kvm zone, yes. I never did that for lipkg or lx zone though since I use Triton images: docs.tritondatacenter.com/public-cl…oud/instances/infrastructure/images

(I’m assuming you want to connect an .iso for installing the OS)

Right.

I've done this so many on Linux/Qemu but everything is so different here.

On Linux, KVM/Qemu is for virtual machines only while, on OmniOS, zones are primarily for containers but can be used also for virtual machines.

or, well, the usual way on illumos systems to run VMs is to run the hypervisor inside a zone for additional isolation and resource management.