Leginon 1.4.1 installed but webpage completely blank

Added by Anonymous almost 17 years ago

Hi,

I just finished the installation of Leginon 1.4.1 with all prerequisites (no error messages so far). However, the resulting webpage is completely empty. `php index.php` results in nothing (apart from an error message saying, that gd.so is already loaded).

If I disable the statement '$leginondata = new leginondata();' in inc/leginon.inc, then I get the Leginon homepage. But the pages then are empty when I click on any of the three links "Image Viewer", "LOI" or "3 Way Viewer".

This is on a CentOS 5 (with all updates) system with PHP 5.1.6 an Apache 2.2.3. I am not fluent in PHP.

Do you have any hints or ideas, where the problem could be or how I should proceed to debug this?

Thanks in advance

frank

Frank Thommen - IT Management and Support Structures - EMBL Heidelberg

Replies (4)

- Added by Anonymous almost 17 years ago

- Remove the extension mrc.so and reload apache

create a file into you web dir called info.php

add the following lines:

<?php
phpinfo();
?>

go to this URL

"http://[yourhost]/info.php"

You'll see all your php info.

- check for GD section

maybe you are trying to load gd.so twice, which explains your error message.

do you have /etc/php.d/gd.ini AND extension=gd.so in /etc/php.ini ?

It should one or the other

- Added by Anonymous almost 17 years ago

"dfellman" wrote: - Remove the extension mrc.so and reload apache

create a file into you web dir called info.php

[...]
- check for GD section

maybe you are trying to load gd.so twice, which explains your error message.

All OK. I have

gd
GD Support           enabled
GD Version           bundled (2.0.28 compatible)
FreeType Support     enabled
FreeType Linkage     with freetype
FreeType Version     2.2.1
GIF Read Support     enabled
GIF Create Support  enabled
JPG Support          enabled
PNG Support          enabled
WBMP Support         enabled
XBM Support          enabled

"dfellman" wrote:
do you have /etc/php.d/gd.ini AND extension=gd.so in /etc/php.ini ?
It should one or the other

This was the problem. There is a /etc/php.d/gd.ini with extension=gd.so. Removed the mrc.so statement in /etc/php.ini and added to a file /etc/php.d/mrc.ini. No error messages now.

Interesting side-observation: The ex1.php and ex2.php examples for mrc.so also work fine when mrc.so is not enabled. (???)

Still: The Leginon page is empty. So this was not the problem. Anything else I could check to get Leginon to work?

- Added by Anonymous almost 17 years ago

1) Check if mrc module for php is installed properly. I tested it under CENTOS release 5 ( final); for more detail go to:

http://emg.nysbc.org/bb/viewtopic.php?t=238

2) edit /etc/php.ini and change the following "error_reporting" and "error_display" to:

error_reporting = E_ALL &amp; ~E_NOTICE

error_display = on

3) make sure that MySQL is running

4) configure config.php from dbem with your database params (host, user, pass, db)

$DB_HOST  = "host";
$DB_USER  = "user";
$DB_PASS  = "pass";
$DB   = "db";

5) go to the viewer on your webserver. It shouldn't be blank, at least you'll read some errors

- Added by Anonymous almost 17 years ago

"dfellman" wrote: 1) Check if mrc module for php is installed properly. I tested it under CENTOS release 5 ( final); for more detail go to:

http://emg.nysbc.org/bb/viewtopic.php?t=238

I hadn't to go far in http://emg.nysbc.org/bb/viewtopic.php?t=238 : php-mysql was missing. After installing this module, things seem to work now.

Maybe some check for the critical PHP modules (syscheck.php?) or some kind of error reporting could be introduced?

Thank you very, very much

frank

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