move auto-formatter drive selection logic to os-autoformat container

and get rid of:
- machine-rancheros.iso,
- special case in build-images,
- some bootstrap.go code

scripts/build-images

@@ -40,7 +40,7 @@ chmod +x ${INITRD_DIR}/docker                                               #ini
 
 ln -sf bin/rancheros ./ros
 
-for i in $(./ros c images -i os-config.yml) rancher/os-autoformat:${VERSION}; do
+for i in $(./ros c images -i os-config.yml); do
     docker pull ${i}
 done
-docker save $(./ros c images -i os-config.yml) rancher/os-autoformat:${VERSION} > ${INITRD_DIR}/images.tar   #initrd2-images: /images.tar
+docker save $(./ros c images -i os-config.yml) > ${INITRD_DIR}/images.tar   #initrd2-images: /images.tar

scripts/package

@@ -30,7 +30,7 @@ default rancheros
 label rancheros
     kernel /boot/vmlinuz
     initrd /boot/initrd
-    append quiet rancher.password=rancher
+    append quiet rancher.password=rancher rancher.state.autoformat=[/dev/sda,/dev/vda]
 EOF
 
 cd ${CD}
@@ -44,24 +44,6 @@ xorriso \
     -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin \
     -o ${DIST}/artifacts/rancheros.iso $(pwd)
 
-cat > ${CD}/boot/isolinux/isolinux.cfg << EOF
-default rancheros
-label rancheros
-    kernel /boot/vmlinuz
-    initrd /boot/initrd
-    append quiet rancher.password=rancher rancher.state.autoformat=[/dev/sda,/dev/vda]
-EOF
-
-cd ${CD}
-xorriso \
-    -publisher "Rancher Labs, Inc." \
-    -as mkisofs \
-    -l -J -R -V "RancherOS" \
-    -no-emul-boot -boot-load-size 4 -boot-info-table \
-    -b boot/isolinux/isolinux.bin -c boot/isolinux/boot.cat \
-    -isohybrid-mbr /usr/lib/syslinux/isohdpfx.bin \
-    -o ${DIST}/artifacts/machine-rancheros.iso $(pwd)
-
 
 if [ -e ${DIST}/artficats/iso-checksums.txt ]; then
     rm ${DIST}/artficats/iso-checksums.txt