error on httpd resolved.
After running firstboot script, I get:

The password for mysql and cyrus admin were successfully changed!
Applying MySQL script /var/spool/elastix-mysqldbscripts/01-asteriskcdrdb.sql ...
Applying MySQL script /var/spool/elastix-mysqldbscripts/01-freepbx.sql ...
Applying MySQL script /var/spool/elastix-mysqldbscripts/02-asteriskuser-password.sql ...
No Elastix CallCenter database found.
No A2Billing database found.
No VTigerCRM database found.
Updating FreePBX database password: mysql... files... updated
Updating FreePBX admin password: mysql... files... updated
Updating FreePBX ARI password: mysql... files... updated
Updating Flash Operator Panel password: mysql... files... updated
Updating Asterisk Manager Interface password: mysql... files... updated
Updating Elastix admin password: sqlite... FATAL: unable to update Elastix admin password: SQLSTATE[HY000]: General error: 1 no such table: acl_user

@scottalanmiller After restarting several times, I finally made a snapshot on digital ocean just after downloading the ISO. It feels like I have saved my game just before a big boss.

Got this installed except for the same error I see here (http://mangolassi.it/topic/6319/elastix-4-install-errors-with-sqlite-unable-to-update-admin-password/6) Any resolution to this?

The database asterisk is there with a table called "ampusers" where it looks like passwords are stored in a field called "password_sha1".

I had no luck with UPDATE (ing) that table and setting password_sha1=SHA1("newpassword") WHERE user="admin"

Feels so close.

@scottalanmiller tried removing this section, but then no password is set for the admin account. I seem installed, but cannot log in. . Am trying on digitalocean as well with centOS 7.

Also, the line "systemctl enable httpd.server" produces file not found error.

@rialejo @scottalanmiller
I tried restarting the service httpd, no luck. I think http server is working because it serves the login page no problem. The troublesome error happens when the first_boot script tries to set the Elastix admin password where there is an sql_lite command that produces error acl_users table not found.

I tried login: admin, password: palosanto to no avail. Going to try doing a fresh start with the httpd service line corrected, and will advise.

@rialejo I have the same result from rpm -qa | grep httpd

any luck @rialejo ?
I may try 3.5 instead of 4...

I almost immediately begin experiencing errors such as:
"Error de conexion a la base de datos - Array ( [0] => HY000 [1] => 8 [2] => attempt to write a readonly database )"

and it is does not seem possible to install addons such as "Call Center" ... Addons menu has error "Query Error SELECT * FROM action_tmp"

When installing "Call Center": The column 'has_account' does not exist and could not be created

The backend does look very nice though.