RESTAPI:Cryptshare doesn't start after rollback to previous version

Applies to:

All versions of Cryptshare Server

Symptom:

After rolling back to a previous version the Cryptshare Server is not available.

Cause:

The Java installation folder has not been restored.

Solution:

There are three approaches to restore Java:

Java backup is stored in the Cryptshare installation folder
Java backup is in the pre-update backup
Java backup is not contained in the pre-update backup

1. Java backup is stored in the Cryptshare installation folder

How to restore Java from direct backup
# run the following command, to check the installation folder
ls -lh /opt/cryptshare-3

# run the following command, to restore the Java installation
unzip -q /opt/cryptshare-3/jre8Backup.zip -d /opt/cryptshare-3/
mv /opt/cryptshare-3/jre8_BAK/ /opt/cryptshare-3/jre8
ln -s /opt/cryptshare-3/jre8 /opt/cryptshare-3/jre8_x64
chmod 755 /opt/cryptshare-3/jre8/bin/java

# run the following command, to start Cryptshare service
rccryptshare start

2. Java backup is in the pre-update backup

How to restore Java from pre-update backup:
# unpack the pre-update backup to the temp folder
mkdir /tmp/pre-update
unzip -q /opt/cryptshare-3/backup/pre_update_<DATE>_.zip -d /tmp/pre-update

# check whether the file java exists in the Java installation folder
ls -lh /tmp/pre-update/system/jre8/bin/java

If the file java doesn't exist, proceed with the Case 3 Java backup is not complete in the pre-update backup in the backup folder
# run the following commands, to restore the Java installation
mv /tmp/pre-update/system/jre8 /opt/cryptshare-3/
ln -s /opt/cryptshare-3/jre8 /opt/cryptshare-3/jre8_x64
chmod 755 /opt/cryptshare-3/jre8/bin/java
rm -rf /tmp/pre-update

# run the following command, to start Cryptshare service
rccryptshare start

3. Java backup is not contained in the pre-update backup

How to restore Java from original installation folder:
# download and unpack the corresponding package to the temp folder
mkdir /tmp/pre-update
wget http://update.cryptshare.com/data/server-3.11.2.0.zip
unzip -q server-3.11.2.0.zip -d /tmp/pre-update
# run the following commands, to restore the Java installation
cp -r /tmp/pre-update/jre/linux/x86/ /opt/cryptshare-3/jre8
ln -s /opt/cryptshare-3/jre8 /opt/cryptshare-3/jre8_x64
chmod 755 /opt/cryptshare-3/jre8/bin/java
rm -rf /tmp/pre-update
# run the following command, to start Cryptshare service
rccryptshare start