New preseed on Ubuntu 20.04

[d4rk3]

This is what works for me:

Code:

set    imgargs    initrd=initrd.gz root=/dev/rd/0 ramdisk_size=14984 rw ip=dhcp auto=true keymap=us hostname=ubuntu vga=normal preseed/url=http://xxx/preseed.cfg

kernel http://xxx/linux ${imgargs}
initrd http://xxx/initrd.gz
boot