The workaround from https://github.com/boxcutter/ubuntu/issues/22 works.
Instead of pressing escape twice and enter to enter text mode do select your language and push F6, enter and escape to enable expert mode and then remove everything from Boot Options and then add the above line:
/install/vmlinuz auto url=http://10.0.2.2:8081/ubuntu-15-04.cfg debian-installer=en_US locale=en_US kbd-chooser/method=us hostname=myhostname keyboard-configuration/modelcode=SKIP keyboard-configuration/layout=USA keyboard-configuration/variant=USA initrd=/install/initrd.gz --
The workaround from https:/ /github. com/boxcutter/ ubuntu/ issues/ 22 works.
Instead of pressing escape twice and enter to enter text mode do select your language and push F6, enter and escape to enable expert mode and then remove everything from Boot Options and then add the above line:
/install/vmlinuz auto url=http:// 10.0.2. 2:8081/ ubuntu- 15-04.cfg debian- installer= en_US locale=en_US kbd-chooser/ method= us hostname=myhostname keyboard- configuration/ modelcode= SKIP keyboard- configuration/ layout= USA keyboard- configuration/ variant= USA initrd= /install/ initrd. gz --