As per /usr/share/doc/dropbear-initramfs/README.initramfs you have to include the drivers of (one of) your networking cards. It gives a script for getting all networking drivers in use:
while read m _; do
/sbin/modinfo -F filename "$m"
done </proc/modules | sed -nr "s@^/lib/modules/\`uname -r`/kernel/drivers/net(/.*)?/([^/]+)\.ko\$@\2@p"
I get four results:
ixgbe, mdio_devres, libphym mdio
I've determined through lspci -v that the network card that I want active in InitramFs uses ixgbe, but I think that maybe it is dependent on some of the other ones listed.
- Do I need to include just ixgbe or some of the others?
- How do I determine which of the others?
- I need to specify them in "load order" in
/etc/initramfs-tools/modules, how do I determine this load order?