sending works

.gitignore

@@ -1,2 +1,3 @@
 linux/build/
 syslinux/
+files/

Makefile

@@ -1,3 +1,5 @@
+.PHONY: .FORCE
+
 files: files/pxelinux.0 files/initrd.img files/vmlinuz files/pxelinux.cfg/default files/ldlinux.c32 files/root.squashfs
 
 files/pxelinux.0: syslinux
@@ -16,7 +18,7 @@ files/pxelinux.cfg/default: pxelinux.cfg
 files/ldlinux.c32: syslinux
 	cp syslinux/bios/com32/elflink/ldlinux/ldlinux.c32 files/ldlinux.c32
 
-files/root.squashfs: linux/build/rootfs
+files/root.squashfs: .FORCE
 	rm files/root.squashfs || true
 	mksquashfs linux/build/rootfs files/root.squashfs
 

linux/Makefile

@@ -3,22 +3,29 @@ CHROOT_CMD := chroot build/rootfs /bin/bash -c
 FILES = $(shell find src/ -type f -print | sed -e 's|^src/|build/rootfs/|')
 FILES_SRC = $(shell find src/ -type f -print)
 
-all: build/rootfs $(FILES) menu build/rootfs/initrd.img
+.PHONY: .FORCE
+
+all: build/rootfs $(FILES) menu images build/rootfs/initrd.img
 
 clean:
 	rm -rf build/rootfs
 
-menu: $(FILES)
+menu:
 	$(CHROOT_CMD) "apt install dialog"
 	$(CHROOT_CMD) "chmod +x /scripts/menu.sh"
 	$(CHROOT_CMD) "usermod -s /scripts/menu.sh root"
 
+images:
+	$(CHROOT_CMD) "apt install -y udpcast"
+	$(CHROOT_CMD) "apt install -y partclone"
+	$(CHROOT_CMD) "apt install -y lzop"
+
 build/rootfs/initrd.img: $(FILES)
 	chmod +x build/rootfs/etc/initramfs-tools/scripts/local-top/download.sh
 	$(CHROOT_CMD) "apt update && apt install -y linux-image-4.19.0-6-amd64"
 	$(CHROOT_CMD) "update-initramfs -c -kall"
 
-$(FILES): $(FILES_SRC)
+$(FILES): .FORCE
 	mkdir -p $(@D)
 	cp $(shell echo $@ | sed -e 's|^build/rootfs/|src/|') $@
 

linux/src/scripts/menu.sh

@@ -2,13 +2,12 @@
 
 sleep 1
 
-dialog --menu " " 10 80 5 \
+dialog --menu " " 20 80 10 \
-  recv_fsa "Receive and write fsarchiver's archive (to /dev/sda1)" \
+  send_pc "Send /dev/sda1 image (partclone)" \
-  recv_sfd "Receive and write sfdisk's partition table" \
+  send_sfd "Send /dev/sda partition table (sfdisk)" \
-  shell "Run root shell" 2>/tmp/menu \
+  send_dd "Send /dev/sda MBR (dd)" \
+  shell "Run root shell" 2>/tmp/menu
 
 if [ "$?" != "0" ]; then CHOICE="shell"; else CHOICE=$(cat /tmp/menu); fi
 
-if ! [ -f "$CHOICE" ]; then CHOICE="shell"; fi
-
 bash $(dirname "$0")/$CHOICE.sh

linux/src/scripts/send_dd.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+DISK=/dev/sda
+INTERFACE=eth0
+
+dd if=$DISK bs=512 count=1 | udp-sender --interface $INTERFACE

linux/src/scripts/send_pc.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+DISK=/dev/sda1
+INTERFACE=eth0
+
+partclone.extfs -s /dev/sda1 -c --logfile /tmp/partclone.log 2>/dev/null| lzop | udp-sender --interface $INTERFACE

linux/src/scripts/send_sfd.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+DISK=/dev/sda
+INTERFACE=eth0
+
+sfdisk -d $DISK | udp-sender --interface $INTERFACE

pxelinux.cfg

@@ -2,6 +2,6 @@ DEFAULT linux
 
 LABEL linux
     kernel vmlinuz
-    append initrd=initrd.img root=/dev/loop0
+    append initrd=initrd.img root=/dev/loop0 net.ifnames=0 biosdevname=0
 PROMPT 0
 TIIMEOUT 0

receive.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+INTERFACE=$1
+udp-receiver --interface $INTERFACE