Migrate from Debian (=>VM) to Proxmox on the same host.

[jokergermany]

Sorry for the topic but every guide I found is about having different physical server.
I only have one physical "server" to make the migration.

Current OS: openmediavault 6.1.2-1 (I nearly don't use the gui => debian)
Current Datastore: 4 HDDs which are splittet in several mdadm Raids despite the partitions for the OS, which are a LVM Mirror.
I am Proxmox newbie and thinking about switching to it this weekend.

I want to make the first step easy as possible.
My Idea would be "just" adding proxmox as another layer and changing nothing else.

I want to insert a 512GB NVMe where i want to make a partition for proxmox.
Then I would create a VM which has access to all Ressources.
The questions which aren't clear to me:
1. How do i get the old Debian in a VM.
1.1 Can i use the LVM Mirror directly?
1.2 Do I have to split the LVM Mirror?
1.4 Do I have to make an VMDISK?

2. Is there a guide how to give all HDDs and other Ressources to OMV?
3 mdadm will work?

What is running on that server at the moment:
HomeAssistant, EVCC, familylink-auth, Mosquitto, Nextcloud, Paperless, (Postgress, KeyDB, Exim)

 

[jokergermany]

Answer is:
create vm without a disk. Remember which ID is created
Then go into the terminal and type in
qm set <vmid> -scsi0 /dev/disk/by-partuuid/....
qm set <vmid> -scsi1 /dev/disk/by-partuuid/....

When you use only partition you need to create a 600MB big disk where you have to create a partition with esp and boot label.

Then you have to fix in the vm with boot-repair Grub.