Working PreOS without SSH

Signed-off-by: Nico Schottelius <nico@wurzel.schottelius.org>

hacking/v3-busybox/all.sh

@@ -3,7 +3,30 @@
 rm -rf preos
 mkdir -p preos/boot
 
-./create_initramfs.sh > preos/boot/initramfs
+initramfs=preos/boot/initramfs
+
+./create_initramfs.sh > "$initramfs"
 ./add_kernel_isolinux.sh preos
 ./copy_bin_with_libs.sh preos
 ./create_iso.sh preos preos.iso
+
+exit 0
+
+run_earlyhook() {
+    kmod static-nodes --format=tmpfiles --output=/run/tmpfiles.d/kmod.conf
+    systemd-tmpfiles --prefix=/dev --create --boot
+    /usr/lib/systemd/systemd-udevd --daemon --resolve-names=never
+    udevd_running=1
+}   
+    
+run_hook() {
+    msg ":: Triggering uevents..."
+    udevadm trigger --action=add --type=subsystems
+    udevadm trigger --action=add --type=devices
+    udevadm settle
+}           
+        
+run_cleanuphook() {
+    udevadm control --exit
+    udevadm info --cleanup-db
+}      

hacking/v3-busybox/create_initramfs.sh

@@ -18,15 +18,19 @@ for link in sh mount; do
 done
 
 cd "${initramfs_dir}"
-find . | cpio -H newc -o | gzip
 
-rm -rf "${initramfs_dir}"
-
-exit 0
+# Add Arch Linux initramfs with kernel modules included
+zcat /boot/initramfs-linux-fallback.img | cpio -i
 
 # TODO:
-# - Kernel modules
 # - ssh
 # - various mkfs
 # - libs
 
+# Create new initramfs
+find . | cpio -H newc -o | gzip
+
+# echo ${initramfs_dir}
+rm -rf "${initramfs_dir}"
+
+exit 0

hacking/v3-busybox/init

@@ -16,46 +16,13 @@ mknod /dev/null c 1 3
 mknod /dev/tty c 5 0
 mdev -s
 
-#Function for parsing command line options with "=" in them
-# get_opt("init=/sbin/init") will return "/sbin/init"
-get_opt() {
-    echo "$@" | cut -d "=" -f 2
-}
-
-#Defaults
-init="/sbin/init"
-root="/dev/hda1"
-
-#Process command line options
-for i in $(cat /proc/cmdline); do
-    case $i in
-        root\=*)
-            root=$(get_opt $i)
-            ;;
-        init\=*)
-            init=$(get_opt $i)
-            ;;
-    esac
-done
+# udev stuff
+kmod static-nodes --format=tmpfiles --output=/run/tmpfiles.d/kmod.conf
+systemd-tmpfiles --prefix=/dev --create --boot
+/usr/lib/systemd/systemd-udevd --daemon --resolve-names=never
+udevadm trigger --action=add --type=subsystems
+udevadm trigger --action=add --type=devices
+udevadm settle
 
 
 exec sh
-
-# Skipping the rest
-
-#Mount the root device
-mount "${root}" /newroot
-
-#Check if $init exists and is executable
-if [[ -x "/newroot/${init}" ]] ; then
-    #Unmount all other mounts so that the ram used by
-    #the initramfs can be cleared after switch_root
-    umount /sys /proc
-    
-    #Switch to the new root and execute init
-    exec switch_root /newroot "${init}"
-fi
-
-#This will only be run if the exec above failed
-echo "Failed to switch_root, dropping to a shell"
-exec sh