Server Information page is not accessible or unable to install license

Refers to:

  • Plesk 12.5 for Linux
  • Plesk 11.5 for Linux
  • Plesk 12.0 for Linux

Created:

2016-11-16 13:24:42 UTC

Modified:

2016-12-21 20:39:26 UTC

0

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Server Information page is not accessible or unable to install license

Symptoms

Unable to open Tools and Settings > Server Information menu in Plesk due to the following error:

    ERROR: PleskFatalException: StatInfo->getActiveDomainsNumber() failed: devices number <= 0
Additionally, an exception has occurred while trying to report this error: PleskFatalException
StatInfo->getProductVersion failed: devices number <= 0 (class.SystemStatisticsForm.php:123)

Also, the following error may be shown during license installation:

ERR [panel] StatInfo->getProductVersion failed: devices number <= 0:
0: /usr/local/psa/admin/plib/functions.php:76
getFullProductNameVersion()
1: /usr/local/psa/admin/plib/Plesk/Title.php:27
Plesk_Title::get()
2: /usr/local/psa/admin/plib/functions.php:363
go_to(string '/?start_page=%2Fplesk%2Flicense%2F', string 'top')
3: /usr/local/psa/admin/htdocs/server/key_upload.php:134
ERR [1] StatInfo->getProductVersion failed: devices number <= 0

In /var/log/plesk/panel.log it may be possible to find another errors like:

PHP Warning: Invalid argument supplied for foreach(); File: /usr/local/psa/admin/plib/ExtendedServerInfo.php, Line: 1718

Partition /sys/kernel/debug is mounted:

# mount | grep /sys/kernel/debug
none on /sys/kernel/debug type debugfs (rw)

Output of df -h returns an error:

# df -h
df: `/sys/kernel/debug': Function not implemented

Or

# df -h
df: `/tmp/SECUPD': Input/output error

Execution of /usr/local/psa/admin/bin/sysinfo returns the following error:

# /usr/local/psa/admin/bin/sysinfo df-full
sysinfo: ERROR: system call statfs
System error 38: Function not implemented
sysinfo: ERROR: system call statfs
System error 38: Function not implemented
10

Or

sysinfo: ERROR: system call statfs
System error 5: Input/output error
sysinfo: ERROR: system call statfs
System error 5: Input/output error
sysinfo: ERROR: system call statfs
System error 5: Input/output error
sysinfo: ERROR: system call statfs
System error 5: Input/output error
11

Cause

One of the server's partitions is not properly mounted.

Resolution

Unmount improperly mounted partition:

# umount /sys/kernel/debug

Or

# umount /tmp/SECUPD

If the issue persists, try to access all mount points using ls -la and umount thas will show an error.

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