Please enable UDF support in kernel
See parent task

In T164#10367, @ebob9 wrote:

Diving into it, WAAGENT is waiting for cloud-init to copy the ovf-env.xml to the designated /var/lib area so it can parse. In testing, the build above doesn't have kernel UDF filesystem support so that is at least one blocker to prevent it from working:

DMESG:
[    1.457348] scsi 1:0:0:0: CD-ROM            Msft     Virtual CD/ROM   1.0  PQ: 0 ANSI: 5
[    1.461681] sr 1:0:0:0: [sr0] scsi3-mmc drive: 0x/0x tray
[    1.461685] cdrom: Uniform CD-ROM driver Revision: 3.20
[    1.462087] sr 1:0:0:0: Attached scsi CD-ROM sr0
[    1.462618] sr 1:0:0:0: Attached scsi generic sg2 type 5
root@vyos:/etc# mkdir /tmp/mnt
root@vyos:/etc# cd /tmp
root@vyos:/tmp# mount /dev/sr0 mnt
mount: unknown filesystem type 'udf'
root@vyos:/tmp#