Article ID: 120715, created on Mar 25, 2014, last review on May 10, 2014

  • Applies to:
  • Plesk 11.0 for Linux


1) Plesk login URL is loading blank page.

2) Sw-cp-server logs show error:

    # less /var/log/sw-cp-server/error.log:

    System error 2: No such file or directory

    0: Unix.php:343
        Service_Node_Components_Unix->_syncProperties(NULL null, boolean false)
    1: :
        call_user_func_array(array, array)
    2: Properties.php:151
        Service_Node_Properties->sync(NULL null, boolean false)
    3: Components.php:20
    4: Properties.php:32
        Service_Node_Properties->__construct(object of type Db_Table_Row_ServiceNode)
    5: ServiceNode.php:185
    6: ServiceNode.php:88
    7: auth.php3:507

    Warning: Cannot modify header information - headers already sent by (output started at /usr/local/psa/admin/plib/Form/Abstract.php:404) in /usr/local/psa/admin/smb/application/library/Smb/Exception/Syntax.php on line 62
        PHP Warning: psasem_lock() failed for semnum 35: semaphores must be acquired in the incremental mode, mask = 34359738367 semset = 68719476736

3) The command below hangs and does not show any output:

/usr/local/psa/bin/admin --show-password


  1. Not enough free disk space (/var partition).
  2. Corrupted rpm database.


Check free disk space and rebuild rpm database:

    rm -f /var/lib/rpm/__db*

    rpm --rebuilddb

Search Words

Plesk login blank

Login screen blank

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