How to set the boot order to boot from an image added as USB drive on Proxmox VE 6.3-3?

[prolab]

I'm following this tutorial (https://xpenology.com/forum/topic/7387-tutorial-dsm-6x-on-proxmox/) to set up Xpenology DSM on Proxmox VE 6.3-3.

Basically it's adding an image as USB drive to a VM, and booting from this USB drive. However in the last step things have changed on newer Proxmox VE like 6.3-3.
I followed their tutorials and discussions and added the "synoboot-usb.img" to the VM's conf (/etc/pve/qemu-server/131.conf). Now my conf looks like this:

args: -device 'qemu-xhci,addr=0x18' -drive 'id=synoboot,file=/zfstest5/enc/dir/files/synoboot-usb.img,if=none,format=raw' -device 'usb-storage,id=synoboot,drive=synoboot'
boot: order=net0;sata2
cores: 4
memory: 4096
name: DSM11
net0: e1000=00:11:32:B0:C8:30,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
sata2: zfstest5-enc-vol:vm-131-disk-0,size=200G
scsihw: virtio-scsi-pci
smbios1: uuid=4e4d1255-6d57-4018-8537-4e0dbda595f4
sockets: 1
vmgenid: 33d47b36-40b8-4ce8-baad-f6cdbbba7c5f

In that post which should be an earlier version of Proxmox VE, the last step is to edit the boot line as boot: synoboot to let it boot from the "synoboot-usb.img" image. However, in this new version, that doesn't work. I tried to tweak the boot: order=net0;sata2 line as followings:

boot: order=synoboot;net0;sata2
boot: order=usb0;net0;sata2

But these still doesn't work. I have looked at the wiki (https://pve.proxmox.com/wiki/Manual:_qm.conf) but it does not say what can be put after the "order=". So how to set the boot order to boot from the image on Proxmox VE 6.3-3?

 

[Stefan_R]

I doubt boot: synoboot was ever intended to work, that probably did more out of sheer luck than anything.

Regardless, you got the syntax right for your new-style order= entry, but it's invalid since it can only refer to devices specified in our config format. You have neither a 'synoboot' nor a 'usb0' device, only a custom 'args' entry, which is not parsed.

You should be able to tell QEMU directly to boot the device though, try adding 'bootindex=5' to the end of the -device part of the command, i.e. -device 'usb-storage,id=synoboot,drive=synoboot,bootindex=5'

 

[cwiggs]

I doubt boot: synoboot was ever intended to work, that probably did more out of sheer luck than anything.

Regardless, you got the syntax right for your new-style order= entry, but it's invalid since it can only refer to devices specified in our config format. You have neither a 'synoboot' nor a 'usb0' device, only a custom 'args' entry, which is not parsed.

You should be able to tell QEMU directly to boot the device though, try adding 'bootindex=5' to the end of the -device part of the command, i.e. -device 'usb-storage,id=synoboot,drive=synoboot,bootindex=5'

This method seems to no longer work with proxmox ve 6.4-13, is there a new method?

EDIT: after many tries it does seem to be working now, i did delete the "boot" line, perhaps that was it?