Mount an LVM partition image cloned with dd

Im trying to mount a partition with dd based on this article: https://www.utilities-online.info/articles/Mount-an-LVM-partition-image-cloned-with-dd.

However I keep getting the same error.

My steps:

root@vagrant:/root# fdisk -l out.dd 
Disk out.dd: 3.1 GiB, 3371216896 bytes, 6584408 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes

losetup /dev/loop0 out.dd

root@vagrant:/root# pvs
  WARNING: Device /dev/loop0 has size of 6584408 sectors which is smaller than corresponding PV size of 20555776 sectors. Was device resized?
  One or more devices used as PVs in VG ubu-xyz have changed sizes.
  PV         VG         Fmt  Attr PSize   PFree  
  /dev/loop0 ubu-xyz    lvm2 a--    9.80g 100.00m
  /dev/sda1  vagrant-vg lvm2 a--  <64.00g      0 

root@vagrant:/root# vgchange -a y ubu-xyz
  WARNING: Device /dev/loop0 has size of 6584408 sectors which is smaller than corresponding PV size of 20555776 sectors. Was device resized?
  One or more devices used as PVs in VG ubu-xyz have changed sizes.
  device-mapper: resume ioctl on  (253:2) failed: Invalid argument
  Unable to resume ubu--xyz-ubuntu--lv (253:2)
  device-mapper: resume ioctl on  (253:3) failed: Invalid argument
  Unable to resume ubu--xyz-swap (253:3)
  2 logical volume(s) in volume group "ubu-xyz" now active

Following the post, now there should be /dev/ubu-xyz/.. which however does not exist. I assume it is caused by previours error messages, but googling them doesnt help me further.

Thanks!