Installation and Uninstallation in UNIX

The installation process of WebtoB and its Servlet Engine is identical on all Solaris, HP, AIX, and Linux platforms.

1. WebtoB Installation

This chapter describes how to install, uninstall, start, and terminate WebtoB in a UNIX/Linux system.

1.1. Console Mode

The following are WebtoB installation instructions. Although default settings are provided in the Installer, carefully enter each setting. To return to the previous step, enter 'back'.

The account used for installation must have read/write permissions to the '/tmp' directory while WebtoB is installed.

Begin installation by executing the installation file (*.bin) for each platform. After preinstallation tasks are complete, a simple usage message appears.

Press the <ENTER> key to continue, or type 'quit' to cancel installation.

$ ./WEBTOB5_0_SP0_Fix4_LinuxK2_6_x64.bin
Preparing to install...
Extracting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

Preparing CONSOLE Mode Installation...

===============================================================================
WEBTOB5_0_SP0_Fix#4               (created with InstallAnywhere by Macrovision)
-------------------------------------------------------------------------------




===============================================================================
Introduction
------------

InstallAnywhere will guide you through the installation of WEBTOB5_0_SP0_Fix#4.

It is strongly recommended that you quit all programs before continuing with
this installation.

Respond to each prompt to proceed to the next step in the installation.  If you
want to change something on a previous step, type 'back'.

You may cancel this installation at any time by typing 'quit'.

PRESS <ENTER> TO CONTINUE:

The WebtoB license information and agreement message appears. Type 'Y' to accept the license agreement, or 'N' to cancel installation.

===============================================================================
License Agreement
-----------------

Installation and use of WEBTOB5_0_SP0_Fix#4 requires acceptance of the
following License Agreement:

WebtoB Release
Tmax Soft Co., Ltd. (hereafter, Tmax Soft) End-User License Agreement

Product : WebtoB

This is a legal agreement between you (either an individual or an company) and
Tmax Soft, Incorporated.  By opening the sealed software package and/or by
using the software, you agree to be bound by the terms of this agreement.

Tmax Soft License
1.  Grant of License:  This Tmax Soft License Agreement ("License") permits you
to use one copy of the Tmax Soft product Tmax, on any single computer, provided
the software is in use on only one computer at any one time.  If this package
is a license pack, you may make and use additional copies of the software up to
the number of licensed copies authorized.  If you have multiple licenses for
the software, then at any time you may have as many copies of the software in
use as you have licenses.
  The software is "in use" on a computer when it is loaded into the temporary
memory (i.e., RAM) or installed into the permanent memory (e.g., hard disk,
CD-ROM, or other storage devices) of that computer, except that a copy
installed on a network server for the sole purpose of distribution to other
computers is not "in use".  If the anticipated number of users of the software
will exceed the number of applicable licenses, then you must have a reasonable

PRESS <ENTER> TO CONTINUE:

Press the <ENTER> key to go to the next license page or type 'quit' to cancel installation.

If the <ENTER> key is pressed, the remaining portion of the license information is displayed.

mechanism or process in place to ensure that the number of persons using the
software concurrently does not exceed the number of licenses.

2.  Copyright:  The software (including any images, "applets," photographs,
animations, video, audio, music and text incorporated into the software) is
owned by Tmax Soft or its suppliers and international treaty provisions.
Therefore, you must treat the software like any other copyrighted materials
(e.g., a book or musical recording) except that you may either (a) make one
copy of the software solely for backup or archival purposes, or (b) transfer
the software to a single hard disk provided you keep the original solely for
backup or archival purposes.  You may not copy the printed materials
accompanying the software, nor print copies of any user documentation provided
in "online" or electronic form.

3.  Other restrictions: This license is your proof of license to exercise the
rights granted herein and must be retained by you. You may not rent, lease, or
transfer your rights under this license on a permanent basis provided you
transfer this license, the software, and all accompanying printed materials,
retain no copies, and the recipient agrees to the terms of this license. You
may not reverse engine, decompile, or disassemble the software, except to the
extent that the foregoing restriction is expressly prohibited by applicable
law.

PRESS <ENTER> TO CONTINUE:



DO YOU ACCEPT THE TERMS OF THIS LICENSE AGREEMENT? (Y/N):

Choose an Installation Set.

To install WebtoB only, select 1.

To install WebtoB with Servlet Engine provided by WebtoB Enterprise Edition, select 2. Servlet Engine features can be used with a demo license without limitations. However, the Enterprise license must be applied for a full purchase license.

This section describes how to install WebtoB only. To install both WebtoB and Servlet Engine together, refer to Servlet Engine Installation.
```
===============================================================================
Choose Install Set
------------------

Please choose the Install Set to be installed by this installer.

  ->1- WebtoB
    2- Servlet + WebtoB

ENTER THE NUMBER FOR THE INSTALL SET, OR PRESS <ENTER> TO ACCEPT THE DEFAULT
   :
```

Set the WebtoB installation directory. To use the default directory, $HOME/webtob, press the <ENTER> key. To change the directory, input the absolute path.

===============================================================================
Choose Install Folder
---------------------

Where would you like to install?

  Default Install Folder: /home/webtob/webtob

ENTER AN ABSOLUTE PATH, OR PRESS <ENTER> TO ACCEPT THE DEFAULT
      :

Before installing WebtoB files, check the installation information (product, installation path, Installation Set, and disk space). Press the <ENTER> key to continue, or type 'quit' to cancel the installation.

===============================================================================
Pre-Installation Summary
------------------------

Please Review the Following Before Continuing:

Product Name:
    WEBTOB5_0_SP0_Fix#4

Install Folder:
    /home/webtob/webtob

Install Set
    WebtoB

Disk Space Information (for Installation Target):
    Required:  118,357,437 bytes
    Available: 3,114,831,872 bytes

PRESS <ENTER> TO CONTINUE:

Reconfirm the installation information is correct. Press the <ENTER> key to continue, or type 'quit' to cancel installation.

===============================================================================
Ready To Install
----------------

Ready to install WEBTOB5_0_SP0_Fix#4 onto your system at the following
location:

   /home/webtob/webtob

PRESS <ENTER> TO INSTALL:

If WebtoB files are installed and the required installation tasks are complete, information on how to check and permanently change the number of file descriptors appears. Press the <ENTER> key to continue.

==============================================================================
Installing...
-------------

 [==================|==================|==================|==================]
 [------------------|------------------|------------------|------------------]


===============================================================================
Information
-----------

The administrator can set the maximum number of file descriptors as follows.
The machine needs a reboot in order for the configuration change to take
effect.

Linux 2.4 and later
-------------------
To check the current maximum number of file descriptors:
- Run "ulimit -Hn" on the command line.
This shows the hard liit.

To permanently change the maximum number of file descriptors:
- Open "/etc/security/limits.conf" with a text editor.
- Add a new line "*       hard      nofile     65536".
  65536 is the new maximum.  Change it as necessary.

PRESS <ENTER> TO CONTINUE:

Once installation is complete, a message appears indicating that WebtoB has been successfully installed. Press the <ENTER> key to complete the installation process.

===============================================================================
Installation Complete
---------------------

Congratulations. WEBTOB5_0_SP0_Fix#4 has been successfully installed to:

   /home/webtob/webtob

PRESS <ENTER> TO EXIT THE INSTALLER:

1.2. Silent Mode

To install WebtoB in silent mode, configure webtob.properties, a properties file for the installation, in advance. When installing WebtoB in silent mode, the installer reads and uses the file without receiving environment variables from a user.

The account used for installation must have read/write permissions to the '/tmp' directory while WebtoB is installed.

Create webtob.properties as follows. For information about each item, refer to Silent Installation Properties File.
```
$ vi webtob.properties
INSTALLER_UI=Silent
CHOSEN_INSTALL_SET=WebtoB
USER_INSTALL_DIR=/home/webtob/webtob
```

Execute the installer in silent mode from a console window.

$ ./WEBTOB5_0_SP0_Fix4_LinuxK2_6_x64.bin -f webtob.properties
Preparing to install...
Extracting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

Preparing SILENT Mode Installation...

===============================================================================
WEBTOB5.0_SP0_Fix#4               (created with InstallAnywhere by Macrovision)
-------------------------------------------------------------------------------




===============================================================================
Installing...
-------------

 [==================|==================|==================|==================]
 [------------------|------------------|------------------|------------------]

Installation Complete.

1.3. Installation Verification

The following describes how to verify the WebtoB installation.

Environment Variables

Ensure that the environment variables are registered in '.profile' (ksh) or '.bash_profile' (bash shell).

<.bash_profile>

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 1.
# The unmodified version of this file is saved in /home/webtob/.bash_profile125137792.
# Do NOT modify these lines; they are used to uninstall.
WEBTOBDIR=/home/webtob/webtob
export WEBTOBDIR
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 1.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 2.
# The unmodified version of this file is saved in /home/webtob/.bash_profile125137792.
# Do NOT modify these lines; they are used to uninstall.
PATH="${WEBTOBDIR}/bin:${PATH}"
export PATH
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 2.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 3.
# The unmodified version of this file is saved in /home/webtob/.bash_profile125137792.
# Do NOT modify these lines; they are used to uninstall.
LD_LIBRARY_PATH="${WEBTOBDIR}/lib:${LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 3.

2. Servlet Engine Installation

Servlet Engine is a feature provided by WebtoB Standard Edition. This section describes the processes for installing a servlet engine in two modes: Console Mode and Silent Mode

2.1. Console Mode

The following is the installation process for WebtoB and Servlet Engine.

To install WebtoB and Servlet Engine together, select 2 in the Installation Set.

To install only WebtoB, refer to WebtoB Installation.

===============================================================================
Choose Install Set
------------------

Please choose the Install Set to be installed by this installer.

  ->1- WebtoB
    2- Servlet + WebtoB

ENTER THE NUMBER FOR THE INSTALL SET, OR PRESS <ENTER> TO ACCEPT THE DEFAULT
   :

Set the WebtoB installation directory. To use the default directory, $HOME/webtob, press the <ENTER> key. To change the directory, input the absolute path.

===============================================================================
Choose Install Folder
---------------------

Where would you like to install?

  Default Install Folder: /home/webtob/webtob

ENTER AN ABSOLUTE PATH, OR PRESS <ENTER> TO ACCEPT THE DEFAULT
      :

Set the JDK path used in Servlet Engine. Press the <ENTER> key to use the default path.

===============================================================================
Choose JDK Folder
-----------------

Please Choose a Folder:

Input User JDK Folder (DEFAULT: /usr):

Set the Servlet Engine administrator account password. Enter the password and reenter it to confirm.

===============================================================================
Password Input
--------------

Enter the Password for the administrator account.
This password will be registered in JEUS as the first user.

Input Password::

Corfirm Password::

Specify the JEUS domain name. To use the default name, press <ENTER>.

===============================================================================
User Domain name
----------------

Enter the Domain name

Enter the Domain name (DEFAULT: jeus_domain):

===============================================================================
Pre-Installation Summary
------------------------

Please Review the Following Before Continuing:

Product Name:
    WEBTOB5.0_SP0_Fix#4

Install Folder:
    /home/webtob/webtob

Install Set
    Servlet + WebtoB

Disk Space Information (for Installation Target):
    Required:  512,413,829 bytes
    Available: 1,149,385,347,072 bytes

PRESS <ENTER> TO CONTINUE:

Reconfirm the installation information is correct. Press the <ENTER> key to continue, or type 'quit' to cancel the installation.

===============================================================================
Ready To Install
----------------

Ready to install WEBTOB5.0_SP0_Fix#4 onto your system at the following
location:

   /home/webtob/webtob

PRESS <ENTER> TO INSTALL:

===============================================================================
Installing...
-------------

 [==================|==================|==================|==================]
 [------------------|------------------|------------------|------------------]



===============================================================================
Information
-----------

The administrator can set the maximum number of file descriptors as follows.
The machine needs a reboot in order for the configuration change to take
effect.

Linux 2.4 and later
-------------------
To check the current maximum number of file descriptors:
- Run "ulimit -Hn" on the command line.
This shows the hard liit.

To permanently change the maximum number of file descriptors:
- Open "/etc/security/limits.conf" with a text editor.
- Add a new line "*       hard      nofile     65536".
  65536 is the new maximum.  Change it as necessary.

PRESS <ENTER> TO CONTINUE:

Once installation is complete, a message appears indicating that WebtoB is successfully installed. Press the <ENTER> key to complete the installation process.

===============================================================================
Installation Complete
---------------------

Congratulations. WEBTOB5_0_SP0_Fix#4 has been successfully installed to:

   /home/webtob/webtob

PRESS <ENTER> TO EXIT THE INSTALLER:

2.2. Silent Mode

To install WebtoB and Servlet Engine in silent mode, configure webtob.properties, a properties file for the installation, in advance. When installing WebtoB in silent mode, the installer reads and uses the file without receiving environment variables from a user.

The account used for installation must have read/write permissions to the '/tmp' directory while WebtoB is installed.

Create webtob.properties as follows. For information about each item, refer to Silent Installation Properties File.

$ vi webtob.properties
INSTALLER_UI=Silent
CHOSEN_INSTALL_SET=Servlet
USER_INSTALL_DIR=/home/webtob/webtob
JAVA_HOME_1=/home/webtob/java7u80
USER_INPUT_PASSWD=1111111
INPUT_DOMAIN_NAME_1=jeus_domain

Run the installer in silent mode from a console window.

$ ./WEBTOB5_0_SP0_Fix4_LinuxK2_6_x64.bin -f webtob.properties
Preparing to install...
Extracting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

Preparing SILENT Mode Installation...

===============================================================================
WEBTOB5.0_SP0_Fix#4               (created with InstallAnywhere by Macrovision)
-------------------------------------------------------------------------------




===============================================================================
Installing...
-------------

 [==================|==================|==================|==================]
 [------------------|------------------|------------------|------------------]

Installation Complete.

2.3. Installation Verification

The following describes how to verify the WebtoB and Servlet Engine installation.

Environment Variable

Ensure that the environment variables are registered in '.profile' (ksh) or '.bash_profile' (bash shell).

<.bash_profile>

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 1.
# The unmodified version of this file is saved in /home/webtob/.bash_profile55609546.
# Do NOT modify these lines; they are used to uninstall.
W2B_JEUSHOME=/home/webtob/webtob/jeus
export W2B_JEUSHOME
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 1.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 2.
# The unmodified version of this file is saved in /home/webtob/.bash_profile55609546.
# Do NOT modify these lines; they are used to uninstall.
PATH="${W2B_JEUSHOME}/bin:${PATH}"
export PATH
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 2.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 3.
# The unmodified version of this file is saved in /home/webtob/.bash_profile55609546.
# Do NOT modify these lines; they are used to uninstall.
WEBTOBDIR=/home/webtob/webtob
export WEBTOBDIR
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 3.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 4.
# The unmodified version of this file is saved in /home/webtob/.bash_profile55609546.
# Do NOT modify these lines; they are used to uninstall.
PATH="${WEBTOBDIR}/bin:${PATH}"
export PATH
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 4.

# New environment setting added by WEBTOB5.0_SP0_Fix#4 on Tue Nov 03 17:31:21 KST 2020 5.
# The unmodified version of this file is saved in /home/webtob/.bash_profile55609546.
# Do NOT modify these lines; they are used to uninstall.
LD_LIBRARY_PATH="${WEBTOBDIR}/lib:${LD_LIBRARY_PATH}"
export LD_LIBRARY_PATH
# End comments by InstallAnywhere on Tue Nov 03 17:31:21 KST 2020 5.

3. Startup and Shutdown

This section briefly describes how to configure and compile the environment file and how to start and terminate WebtoB.

For more information on WebtoB start and termination, refer to WebtoB Administrator’s Guide.

3.1. Environment File Configuration and Compilation

To start WebtoB, the environment file must be configured and compiled.

Environment File Configuration

The environment file is configured using the default http.m file in the ${WEBTOBDIR}/config directory.

<http.m>

*DOMAIN
webtob1

*NODE
qpsx1           WEBTOBDIR="/home/webtob/webtob",
                SHMKEY = 54000,
                DOCROOT="/home/webtob/webtob/docs",
                PORT = "8080",
                HTH = 1,
                #Group = "nobody",
                #User = "nobody",
                NODENAME = "$(NODENAME)",
                ERRORDOCUMENT = "503",
                #JSVPORT = 9900,
                LOGGING = "log1",
                ERRORLOG = "log2",
                SYSLOG = "log3"

*HTH_THREAD
hth_worker
                SendfileThreads = 4,
                AccessLogThread = Y,
                #ReadBufSize=1048576, #1M
                #HtmlsCompression="text/html",
                #SendfileThreshold=32768,
                WorkerThreads=8

*SVRGROUP
htmlg           NODENAME = "qpsx1", SVRTYPE = HTML
cgig            NODENAME = "qpsx1", SVRTYPE = CGI
ssig            NODENAME = "qpsx1", SVRTYPE = SSI

*SERVER
cgi             SVGNAME = cgig, MinProc = 2, MaxProc = 10, ASQCount = 1
ssi             SVGNAME = ssig, MinProc = 2, MaxProc = 10, ASQCount = 1

*URI
uri1            Uri = "/cgi-bin/",   Svrtype = CGI
uri2            Uri = "/examples/",  SvrType=JSV, SvrName=MyGroup

*ALIAS
alias1          URI = "/cgi-bin/", RealPath = "/home/webtob/webtob/cgi-bin/"

*LOGGING
log1            Format = "DEFAULT", FileName = "/home/webtob/webtob/log/access.log_%M%%D%%Y%",
                Option = "sync"
log2            Format = "ERROR", FileName = "/home/webtob/webtob/log/error.log_%M%%D%%Y%",
                Option = "sync"
log3            Format = "SYSLOG", FileName = "/home/webtob/webtob/log/system_%M%%D%%Y%.log",
                Option = "sync"

*ERRORDOCUMENT
503             status = 503,
                url = "/503.html"

*EXT

The following are the properties that must be modified and their descriptions.

Property	Description
SHMKEY	This property must be modified to avoid a possible conflict between WebtoB and other programs. If conflict occurs, an error message appears.
PORT	The port number must be set to an unused value. If the PORT number is already in use by another program, WebtoB will not operate correctly.
JSVPORT	The port number must be set to an unused value. If the JSVPORT number is already in use by another program, Servlet Engine will not operate correctly.

Property

Description

SHMKEY

This property must be modified to avoid a possible conflict between WebtoB and other programs. If conflict occurs, an error message appears.

PORT

The port number must be set to an unused value. If the PORT number is already in use by another program, WebtoB will not operate correctly.

JSVPORT

The port number must be set to an unused value. If the JSVPORT number is already in use by another program, Servlet Engine will not operate correctly.

Compiling the Environment File

After checking the environment file, compile the file using the following example. If compilation is successful, the wsconfig file is created.

$ wscfl –i http.m
Current configuration:
        Number of client handler(HTH) = 1
        Supported maximum user per node = 16327
        Supported maximum user per handler = 16327

Successfully created the configuration file (/home/webtob/webtob/config/wsconfig) for node qpsx1.
The host name of the running machine is qpsx1.

3.2. Starting Up WebtoB

The following describes the process for starting WebtoB.

Run wsboot.

$ wsboot

Booting WebtoB on node (qpsx1)
Starting WSM at Tue Nov 03 20:03:47 2020
Starting HTL at Tue Nov 03 20:03:47 2020
Starting HTH at Tue Nov 03 20:03:47 2020
         Current WebtoB Configuration:
                Number of client handlers (HTH) = 1
                Supported maximum user per node = 16327
                Supported maximum user per handler = 16327
Starting SVR(cgis) at Tue Nov 03 20:03:47 2020
Starting SVR(cgis) at Tue Nov 03 20:03:47 2020
Starting SVR(ssis) at Tue Nov 03 20:03:47 2020
Starting SVR(ssis) at Tue Nov 03 20:03:47 2020

After WebtoB starts, request services through a browser.
```
http://<ip-address>:<port>/
```
If WebtoB has successfully started, the following page appears.

WebtoB Start Screen

3.3. Shutting Down WebtoB

To shut down WebtoB, run the wsdown command.

The following example shows the process of shutting down WebtoB.

$ wsdown
Do you really want to shut down WebtoB? (y : n): y

WSDOWN for node(qpsx1) is starting:
        WSDOWN: SERVER(:10) downed: Tue Nov 03 20:03:50 2020
        WSDOWN: SERVER(:0) downed: Tue Nov 03 20:03:50 2020
        WSDOWN: SERVER(:1) downed: Tue Nov 03 20:03:50 2020
        WSDOWN: SERVER(:11) downed: Tue Nov 03 20:03:50 2020
        WSDOWN: HTL downed: Tue Nov 03 20:03:50 2020
        WSDOWN: HTH downed: Tue Nov 03 20:03:50 2020
        WSDOWN: WSM downed: Tue Nov 03 20:03:50 2020
        WSDOWN: WebtoB is down

4. WebtoB Uninstallation

This section describes the process for uninstalling WebtoB and verifying the uninstallation.

4.1. Uninstalling WebtoB

The following describes the process for uninstalling WebtoB on UNIX systems.

Run the WebtoB Uninstaller located in the following directory.
```
$WEBTOBDIR/UninstallerData/Uninstall
```

If the Uninstaller is executed, the following message is displayed.

Directories and files created during installation are deleted during uninstallation. Files created after installation must be deleted manually. Press the <ENTER> key to continue.

$ ./Uninstall
Preparing CONSOLE Mode Installation...

===============================================================================
WEBTOB5_0_SP0_Fix#4               (created with InstallAnywhere by Macrovision)
-------------------------------------------------------------------------------




===============================================================================
Uninstall WEBTOB5_0_SP0_Fix#4
-----------------------------

About to uninstall...

WEBTOB5_0_SP0_Fix#4

This will remove features installed by InstallAnywhere.  It will not remove
files and folders created after the installation.

PRESS <ENTER> TO CONTINUE:

The following screen is displayed while files and environment variables are deleted.

===============================================================================
Uninstalling...
---------------

...*
*
*************************

If uninstallation is successful, the following message appears, and the uninstaller is terminated.

===============================================================================
Uninstall Complete
------------------

All items were successfully uninstalled.

4.2. Uninstallation Verification

When WebtoB uninstallation is complete, check that the following has been deleted:

Verifying files deletion

Ensure that the installation files have been completely deleted. Files that were created after the installation must be manually deleted.
Verifying environment variables deletion

Ensure that the environment variables and paths added to the PATH variable have been completed deleted.

Installation and Uninstallation in UNIX

1. WebtoB Installation

1.1. Console Mode

1.2. Silent Mode

1.3. Installation Verification

Directory

Environment Variables

2. Servlet Engine Installation

2.1. Console Mode

2.2. Silent Mode

2.3. Installation Verification

Directory

Environment Variable

3. Startup and Shutdown

3.1. Environment File Configuration and Compilation

Environment File Configuration

Compiling the Environment File

3.2. Starting Up WebtoB

3.3. Shutting Down WebtoB

4. WebtoB Uninstallation

4.1. Uninstalling WebtoB

4.2. Uninstallation Verification