Not sure why earlier test with br0 allowed only one machine a DHCP address. Have re-tested on fresh boot. Two VMs booted into LTSP after connecting both using host mode with br0 as the interface.
So when upgrading from 8.04 to 9.04 with virtualbox users should.
1. (before upgrading) Make sure that there are no saved states (as it does not resume properly)
2. (after upgrading) Change network adapter from vboxN to br0
Not sure why earlier test with br0 allowed only one machine a DHCP address. Have re-tested on fresh boot. Two VMs booted into LTSP after connecting both using host mode with br0 as the interface.
So when upgrading from 8.04 to 9.04 with virtualbox users should.
1. (before upgrading) Make sure that there are no saved states (as it does not resume properly)
2. (after upgrading) Change network adapter from vboxN to br0