Comment 16 for bug 1881832

I tried to create another virtual machine with Ubuntu running on TrueNAS server and I carefully monitored devices during install process.

The source of this problem is at I have to use CD-ROM image during install but I have to remove CD-ROM device to start Virtual machine with Ubuntu. TrueNAS doesn't offer any option to use CDROM without disk image (it reports an error when file with ISO image is not found) and I have to remove CD-ROM device (SATA controller). When I remove CD-ROM device, device indexes at PCI bus (lspci output) are changed. ETH device is during install really enp0s5 but once CD-ROM device is removed from virtual machine configuration, it becomes enp0s4. This was not a problem in the past when the first ETH device was always "eth0 " but now it is a problem because any change on PCI can result in different interface name; enp0s5 in the install configuration becomes en0s4 in the run configuration...