I have the same issue and yes I did follow the instructions from wiki.
roman@ThinkPad:~$ sudo apt-get -y install python-software-properties
Reading package lists... Done
Building dependency tree
Reading state information... Done
python-software-properties is already the newest version.
The following packages were automatically installed and are no longer required:
language-pack-zh-hans language-pack-kde-en language-pack-kde-zh-hans language-pack-kde-en-base kde-l10n-engb kde-l10n-zhcn
language-pack-zh-hans-base language-pack-kde-zh-hans-base
Use 'apt-get autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
roman@ThinkPad:~$ sudo add-apt-repository -y ppa:securityonion/stable
gpg: keyring `/tmp/tmp7catLZ/secring.gpg' created
gpg: keyring `/tmp/tmp7catLZ/pubring.gpg' created
gpg: requesting key 23F386C7 from hkp server keyserver.ubuntu.com
gpg: /tmp/tmp7catLZ/trustdb.gpg: trustdb created
gpg: key 23F386C7: public key "Launchpad PPA for Security Onion" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
roman@ThinkPad:~$ sudo apt-get update
roman@ThinkPad:~$ sudo apt-get -y install securityonion-all
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
securityonion-all : Depends: securityonion-elsa but it is not going to be installed
Depends: securityonion-elsa-extras but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
roman@ThinkPad:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
roman@ThinkPad:~$ uname -a
Linux ThinkPad 3.2.0-58-generic-pae #88-Ubuntu SMP Tue Dec 3 18:00:02 UTC 2013 i686 i686 i386 GNU/Linux
I really would like to use this way ("Installing with your preferred flavor of Ubuntu 12.04") as I don't have possibility so far to use 64bit system.
Do you know what's wrong?