After upgrading to Barracuda Head hostmaster url redirects to install.php and 403's

/var/aegir/config/includes/barracuda_log.txt

Tue Feb 21 23:25:55 EST 2012 / Debian.squeeze i686 XEN / Aegir BOA-2.0.2 / Barracuda BOA-2.0.2 / Nginx 1.0.12 / PHP 5.2.17 and 5.3.10 / FPM 5.3 / MariaDB localhost $
Thu Mar 15 08:51:06 EDT 2012 / Debian.squeeze i686 XEN / Aegir HEAD / Barracuda BOA-2.0.3-dev / Nginx 1.0.13 / PHP 5.2.17 and 5.3.10 / FPM 5.3 / MariaDB localhost /$

/var/aegir/install.log

==> MySQL is listening on *removed*.
==> This script makes the following assumptions:
 * you have read INSTALL.txt and prepared the platform accordingly
 * you are running as your "aegir" user
==> Aegir will now generate a mysql super user password for you:
  Username : aegir_root
  Password : *removed*
  Hostname : *removed*
==> Installing drush in /var/aegir
==> Drush seems to be functioning properly
==> Installing provision backend in /var/aegir/.drush
==> Installing the frontend
Aegir BOA-2.0.2 automated install script
==============================================================================
Some settings have not been provided and will now be prompted.
Don't worry: you will get to review those settings after the final install

This script will operate the following changes in your system:

1. Create server-level configuration directories
2. Download drush_make
3. Create the Hostmaster frontend platform
4. Install the frontend site
5. Setup the dispatcher (a user cron job)

We are making the following assumptions:
 * you have read and are following the install instructions at:
    http://community.aegirproject.org/installing
 * the FQDN of this machine is valid and resolves
 * you are executing this script as your "aegir" user

The following settings will be used:
 Aegir frontend URL: a01.*removed*
 Master server FQDN: h01.*removed*
 Aegir root: /var/aegir
 Aegir user: aegir
 Web group: www-data
 Web server: nginx
 Aegir DB host: localhost
 Aegir DB user: aegir_root
Aegir DB password: <previously set>
 Drush make version: 6.x-2.3
 Aegir version: BOA-2.0.2
 Aegir platform path: /var/aegir/hostmaster-BOA-2.0.2
 Aegir makefile: /var/aegir/.drush/provision/aegir.make
 Admin email: info@*removed*

Do you really want to proceed with the install (y/n): y
Project drush_make (6.x-2.3) downloaded to /var/aegir/.drush//drush_make.                                                                       ^[[1;32;40m^[[1m[suc$
Project drush_make contains 0 modules: .
pressflow downloaded from http://files.aegir.cc/dev/pressflow6.tar.gz.                                                                          ^[[1;32;40m^[[1m[ok]$
hostmaster downloaded from http://files.aegir.cc/versions/hostmaster-BOA-2.0.2.tar.gz.                                                          ^[[1;32;40m^[[1m[ok]$
Found makefile: hostmaster.make                                                                                                                 ^[[1;32;40m^[[1m[ok]$
Project information for admin_menu retrieved.                                                                                                   ^[[1;32;40m^[[1m[ok]$
Project information for openidadmin retrieved.                                                                                                  ^[[1;32;40m^[[1m[ok]$
Project information for install_profile_api retrieved.                                                                                          ^[[1;32;40m^[[1m[ok]$
Project information for jquery_ui retrieved.                                                                                                    ^[[1;32;40m^[[1m[ok]$
Project information for modalframe retrieved.                                                                                                   ^[[1;32;40m^[[1m[ok]$
Project information for hosting_platform_pathauto retrieved.                                                                                    ^[[1;32;40m^[[1m[ok]$
admin_menu downloaded from http://ftp.drupal.org/files/projects/admin_menu-6.x-1.8.tar.gz.                                                      ^[[1;32;40m^[[1m[ok]$
openidadmin downloaded from http://ftp.drupal.org/files/projects/openidadmin-6.x-1.2.tar.gz.                                                    ^[[1;32;40m^[[1m[ok]$
install_profile_api downloaded from http://ftp.drupal.org/files/projects/install_profile_api-6.x-2.1.tar.gz.                                    ^[[1;32;40m^[[1m[ok]$
jquery_ui downloaded from http://ftp.drupal.org/files/projects/jquery_ui-6.x-1.4.tar.gz.                                                        ^[[1;32;40m^[[1m[ok]$
modalframe downloaded from http://ftp.drupal.org/files/projects/modalframe-6.x-1.6.tar.gz.                                                      ^[[1;32;40m^[[1m[ok]$
hosting_platform_pathauto downloaded from http://ftp.drupal.org/files/projects/hosting_platform_pathauto-6.x-2.0-beta1.tar.gz.                  ^[[1;32;40m^[[1m[ok]$
jquery_ui downloaded from http://files.aegir.cc/dev/jquery.ui-1.6.zip.                                                                          ^[[1;32;40m^[[1m[ok]$
Created *removed* database                                                                                                                 ^[[1;32;40m^[[1m[suc$
Creating master server node                                                                                                                     ^[[1;32;40m^[[1m[sta$
Task verify was added to the queue. Next queue run is 04:23:00+0000, server time is 04:22:34+0000.                                              ^[[1;32;40m^[[1m[sta$
Creating db server node                                                                                                                         ^[[1;32;40m^[[1m[sta$
Task verify was added to the queue. Next queue run is 04:23:00+0000, server time is 04:22:34+0000.                                              ^[[1;32;40m^[[1m[sta$
Task verify was added to the queue. Next queue run is 04:23:00+0000, server time is 04:22:34+0000.                                              ^[[1;32;40m^[[1m[sta$
Task import was added to the queue. Next queue run is 04:23:00+0000, server time is 04:22:34+0000.                                              ^[[1;32;40m^[[1m[sta$
Configuring menu items                                                                                                                          ^[[1;32;40m^[[1m[sta$
Configuring Eldir theme                                                                                                                         ^[[1;32;40m^[[1m[sta$
Configuring default blocks                                                                                                                      ^[[1;32;40m^[[1m[sta$
Configuring roles                                                                                                                               ^[[1;32;40m^[[1m[sta$
Content permissions have been rebuilt.                                                                                                          ^[[1;32;40m^[[1m[sta$
 nitializing the hosting system
Dispatch command was run successfully                                                                                                           ^[[1;32;40m^[[1m[suc$
Installed hosting-dispatch cron entry to run every minute                                                                                       ^[[1;32;40m^[[1m[suc$
This command will replace your crontab for this user. continue? (y/n): y
/var/aegir/drush/drush.php '@hostmaster' hosting-dispatch
************************************************************************



Aegir is now installed. You can visit it at http://a01.*removed*
************************************************************************

/root/.barracuda.cnf

##
### Configuration created on 120221-2242 with
### Barracuda version BOA-2.0.2
###
### NOTE: the group of settings displayed bellow will *not* be overriden
### on upgrade by the Barracuda script nor by this configuration file.
### They can be defined only on initial Barracuda install.
###
_HTTP_WILDCARD=NO
_MY_OWNIP="*removed*"
_MY_HOSTN="*removed*"
_MY_FRONT="*removed*"
_THIS_DB_HOST=localhost
_SMTP_RELAY_TEST=YES
_SMTP_RELAY_HOST=""
_LOCAL_NETWORK_IP=""
_LOCAL_NETWORK_HN=""
###
### NOTE: the group of settings displayed bellow
### will *override* all listed settings in the Barracuda script,
### both on initial install and upgrade.
###
_MY_EMAIL="info@*removed*"
_XTRAS_LIST="CSF"
_AUTOPILOT=NO
_DEBUG_MODE=NO
_DB_SERVER=MariaDB
_SSH_PORT=22
_LOCAL_DEBIAN_MIRROR=""
_LOCAL_UBUNTU_MIRROR=""
_FORCE_GIT_MIRROR=""
_DNS_SETUP_TEST=YES
_NGINX_EXTRA_CONF=""
_PHP_FORCE_REINSTALL=NO
_SQL_FORCE_REINSTALL=NO
_NGINX_WORKERS=AUTO
_PHP_FPM_WORKERS=AUTO
_PHP_INSTALL_NEW=YES
_PHP_FPM_VERSION=5.3
###
### Configuration created on 120221-2242 with
### Barracuda version BOA-2.0.2
###
_PHP_CLI_VERSION=5.3
_LOAD_LIMIT_ONE=1444
_LOAD_LIMIT_TWO=888
_CUSTOM_CONFIG_CSF=NO
_CUSTOM_CONFIG_SQL=NO
_CUSTOM_CONFIG_PHP_5_2=NO
_CUSTOM_CONFIG_PHP_5_3=NO
_SPEED_VALID_MAX=300
_NGINX_DOS_LIMIT=300

Re #3. Both appear to be pointing to the correct directory

contents of the host_master dir:

aegir@h01:~/host_master/001$ ls -la
total 176
drwxr-xr-x  8 aegir aegir  4096 Mar 15 08:50 .
drwx--x--x  3 aegir aegir  4096 Mar 15 08:50 ..
-rw-r--r--  1 aegir aegir   206 Mar 15 08:50 cron.php
-r--r--r--  1 aegir aegir 50153 Mar 15 08:51 drushrc.php
drwxr-xr-x  2 aegir aegir  4096 Mar 15 08:50 includes
-rw-r--r--  1 aegir aegir   923 Mar 15 08:50 index.php
-rw-r--r--  1 aegir aegir 47788 Mar 15 08:50 install.php
drwxr-xr-x  3 aegir aegir  4096 Mar 15 08:50 misc
drwxr-xr-x 37 aegir aegir  4096 Mar 15 08:50 modules
drwxr-xr-x  4 aegir aegir  4096 Mar 15 08:50 profiles
drwxr-xr-x  5 aegir aegir  4096 Mar 15 08:50 sites
drwxr-xr-x  4 aegir aegir  4096 Mar 15 08:50 themes
-rw-r--r--  1 aegir aegir 26310 Mar 15 08:50 update.php
-rw-r--r--  1 aegir aegir   294 Mar 15 08:50 xmlrpc.php

aegir@h01:~/host_master/001/sites/a01.domain.com$ ls -ls
total 80
56 -r--r-----  1 aegir aegir    52597 Mar 15 08:51 drushrc.php
 4 drwxrws--- 15 aegir www-data  4096 Feb 21 23:22 files
 4 drwxrwsr-x  2 aegir aegir     4096 Feb 21 23:22 libraries
 4 drwxrwsr-x  2 aegir aegir     4096 Feb 21 23:22 modules
 4 drwxrws---  4 aegir www-data  4096 Feb 21 23:22 private
 4 -r--r-----  1 aegir www-data  3121 Mar 15 08:51 settings.php
 4 drwxrwsr-x  2 aegir aegir     4096 Feb 21 23:22 themes

I'm getting the following if I try and restart nginx manually:
Starting Nginx Server...:nginx: [emerg] bind() to *secondaryIP*:80 failed (99: Cannot assign requested address)

Re #8 , yes the secondary IP was added to aegir interface before upgrading to head, I've reverified since adding the secondary IP to /etc/network/interfaces and restarting networking and the secondary has been added to vhost files.

I am getting a warning when restarting networking however:

Running /etc/init.d/networking restart is deprecated because it may not enable again some interfaces ... (warning).
Reconfiguring network interfaces...SIOCDELRT: No such process
done.

and I am unable to ping the gateway for the secondary IP.

The problem was that linode needed a reboot after adding extra IP