Article ID: 115208, created on Nov 26, 2012, last review on Aug 12, 2014

  • Applies to:
  • Plesk 11.x for Linux


Backup restorations and migrations fail with the warning:
Cannot restore Virtual host of DOMAIN.tld: the name '' is already used in Panel by Virtual host of ...


If a domain has no 'Service Plan', then backup is created with an empty sysuser.
As a result it is impossible to restore/migrate the subscription.
# grep sysuser backup_file_info_1211112012.xml
            <sysuser name="">


The issue has been fixed in since Micro-update MU#27.
You may use this command to know the latest MU installed on your server:
# cat /root/.autoinstaller/microupdates.xml
<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<product id="plesk" version="11.0.9" installed-at="20121112T185807">
<patch version="26" timestamp="" installed-at="20121120T004853" />

If the latest MU number is less than 27 for your server, run this command to install the latest Micro-updates:

C:\Parallels\Plesk\admin\bin>ai.exe --select-product-id panel --select-release-latest --upgrade-installed-components

After that the backups will be created properly. You may check them using this command:
# grep sysuser backup_file_info_1511112012.xml
          <sysuser name="testname" shell="/bin/bash">

0a53c5a9ca65a74d37ef5c5eaeb55d7f 56797cefb1efc9130f7c48a7d1db0f0c a914db3fdc7a53ddcfd1b2db8f5a1b9c 29d1e90fd304f01e6420fbe60f66f838

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