[archiso] Use dm-snapshot instead of aufs2 (A.K.A. "The Big Commit")

* Use device mapper + snapshot module, instead union layer filesystem.
  * A block-level approach vs vfs-level.
  * No more unofficial (Linux) things.
  * More memory is needed.
* Refactor mkarchiso.
* Refactor hooks/archiso.
* Fix install/archiso_pxe_nbd
  (due recent change in mkinitcpio-0.6.15 on checked_modules()/all_modules())
  [Thanks Dave for the improved workaround]
* New configs/releng to build official images.
  * Works with a Bash script instead of Makefile.
    (better control and easy to maintain)
* Remove configs/syslinux-iso.
* Remove archiso2dual script. Integrate functionality in configs/releng.
* New configs/baseline to build the most basic live medium or use as template.
* New README (draft). [Thanks Dieter for fixing english grammar]

Signed-off-by: Gerardo Exequiel Pozzi <vmlinuz386@yahoo.com.ar>

2 files changed, 73 insertions, 0 deletions

diff --git a/configs/releng/root-image/etc/rc.d/archiso b/configs/releng/root-image/etc/rc.d/archiso
new file mode 100755
index 0000000..1429516
--- /dev/null
+++ b/configs/releng/root-image/etc/rc.d/archiso
@@ -0,0 +1,48 @@
+# vim: set ft=sh:
+. /etc/rc.conf
+. /etc/rc.d/functions
+
+do_makeuser ()
+{
+    stat_busy "Making the default user arch"
+    addgroups="audio,disk,optical,wheel"
+    useradd -m -p "" -g users -G $addgroups arch
+    stat_done
+}
+
+do_locale_gen ()
+{
+    stat_busy "Generating locales..."
+    sed -i "s/#\(${LOCALE/[@.]*}\)/\1/" /etc/locale.gen
+    /usr/sbin/locale-gen > /dev/null
+    stat_done
+}
+
+# If an alternate console was specified on the kernel command line,
+# start agetty on it too.
+do_special_console()
+{
+    cmdline_console="$(kernel_cmdline console)"
+    [ $? -ne 0 ] && return
+
+    dev="${cmdline_console%%,*}"
+    args="${cmdline_console##*,}"
+    baud="${args%%[neo]*}" && baud="${baud:-"9600"}"
+    [ "x${args}" != "x${args%%r}" ] && rts="-h"
+
+
+    stat_busy "Starting agetty on console: ${cmdline_console}"
+    echo "${dev}" >> /etc/securetty
+    echo "z0:2345:respawn:/sbin/agetty ${rts} ${baud} ${dev} linux" >> /etc/inittab
+    /sbin/telinit q
+    stat_done
+}
+
+case "$1" in
+  start)
+    do_locale_gen
+    do_makeuser
+    do_special_console
+    ;;
+esac
+exit 0
diff --git a/configs/releng/root-image/etc/rc.d/functions.d/automated_script b/configs/releng/root-image/etc/rc.d/functions.d/automated_script
new file mode 100644
index 0000000..edb8ea3
--- /dev/null
+++ b/configs/releng/root-image/etc/rc.d/functions.d/automated_script
@@ -0,0 +1,25 @@
+. /etc/archiso/functions
+
+automated_script ()
+{
+    script="$(kernel_cmdline script)"
+    if [[ -n "$script" ]]; then
+        stat_busy "Configuring $script"
+        if [[ "$script" =~ ^http:// || "$script" =~ ^ftp:// ]]; then
+            wget "$script" -q -O /tmp/startup_script >/dev/null
+            rt=$?
+        else
+            cp "$script" /tmp/startup_script
+            rt=$?
+        fi
+        if [ $rt -eq 0 ]; then
+            chmod +x /tmp/startup_script
+            echo -e '\nif [ $(tty) = "/dev/tty1" ]; then\n    /tmp/startup_script\nfi\n' >> /root/.bash_profile
+            stat_done
+        else
+            stat_fail
+        fi
+    fi
+}
+
+add_hook multi_end automated_script