replace tcpsvd with nc, no need to recompile busybox

README.md

@@ -1,6 +1,5 @@
 ## Requirements
 
-- Rebuild busybox on debian with `CONFIG_TCPSVD=y`
 - Uninstall dropbear if previously installed
 - Add scripts in `/etc/initramfs-tools`
 - Add `authorized_keys` to `/etc/tinyssh-initramfs/authorized_keys` (only ssh-ed25519)

etc/initramfs-tools/scripts/init-premount/tinyssh

@@ -32,7 +32,7 @@ run_tinyssh() {
     # init-bottom script to kill the remaining ipconfig processes if
     # someone unlocks the rootfs from the console while the network is
     # being configured
-    exec /bin/tcpsvd 0 $ssh_port /usr/sbin/tinysshd -$flags ${TINYSSH_OPTIONS-} /etc/tinyssh/sshkeydir
+    exec /bin/nc -ll -p $ssh_port -e /usr/sbin/tinysshd -$flags ${TINYSSH_OPTIONS-} /etc/tinyssh/sshkeydir
 }
 
 if [ -e /etc/tinyssh/config ]; then