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How To Upgrade VT Writer on RedHat

Note: You should back up your VT Writer database before running any upgrades. To backup your database see the instructions here:


To Upgrade VT Writer to the latest version run the following commands:

# If your VT Writer Server has internet access
yum install -y

yum install -y

# If your VT Writer Server doesn't have internet access
Download the rpms from:
then FTP/SCP the rpms to your Readability server and run

yum install -y visiblethread-api-0.22-1.x86_64.rpm
yum install -y visiblethread-readability-2.4.5-1.x86_64.rpm

To verify the upgrade was successful, check the version of the visiblethread packages using yum:

# The below command should show version 0.22
yum info visiblethread-api

# The below command should show version 2.4.5
yum info visiblethread-readability

Also, check the version number on the login screen. It should display version number 2.4.5. It's also advised to login and run a basic functional test. This can be done by running one of each scan (Upload doc, URL scan, and a Text scan).

Note: If you experience either of the errors displayed in the screenshots below follow this link to upgrade your readability Server,

Error 1.


Error 2.


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