Upstart booting on kFreeBSD

[James Hunt]

Building on the great work that Dimitri has already done on libnih [1] and
Upstart [2], we now have Upstart booting to a getty login prompt on a kFreeBSD
system (Debian + FreeBSD kernel).

To recreate the setup...

= Install the Base system =

- Install Debian "unstable" (aka sid).
- Upgrade to "experimental".
- Upgrade the kernel to atleast version 10 (I used 11-0-0-686).
- Upgrade eglibc to 2.18.
- install Upstart dependencies:
  apt-get install build-essential pkg-config libtool libinotify-dev
libdbus-1-dev libexpat1-dev autotools-dev gettext autoconf autopoint libjson0-dev

= Build libnih =

$ git clone github.com/xnox/libnih
$ autoreconf -fi && ./configure && make && sudo make install

= Build and Install Upstart =

$ bzr branch lp:~jamesodhunt/upstart/kfreebsd
$ autoreconf -fi && ./configure && make
$ sudo install init/init /sbin/init.upstart
$ sudo install util/initctl /sbin/initctl

= Create a Basic getty Job =

$ sudo su -
# cd /etc/init
# cat >tty.conf<<EOT
start on startup
exec /sbin/getty -8 38400 ttyv1
EOT

= Update Grub =

- Copy the "menuentry" for the kernel you have just installed into
  /etc/grub.d/40_custom and add "upstart" to the name so you can
  distinguish the upstart boot option.

- Add "set kFreeBSD.init_path=/sbin/init.upstart" to the "menuentry" block
  (within the braces).

- Run "sudo update-grub".

[1] - http://blog.surgut.co.uk/2013/11/libnih-upstart-dependency-ported-to.html
[2] - https://code.launchpad.net/~xnox/upstart/kfreebsd

= Test =

- Reboot and select the "upstart" menu option in grub.
- Once booted, switch to the *second* tty (for example using "sendkey
  ctrl-alt-f2" in the qemu/kvm console).

= Caveats =

As you will see, this is an extremely simple setup - the disks are not even
mounted read-write, however it proves the concept at this early stage :)

Kind regards,

James.

[1] - http://blog.surgut.co.uk/2013/11/libnih-upstart-dependency-ported-to.html
[2] - https://code.launchpad.net/~xnox/upstart/kfreebsd

--
James Hunt
____________________________________
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