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The normal patches doesn’t need databases upgrade, but someones does. Check the patches reference table to know when it will be necessary. |
Patches reference table
| Current version | Target version | Database changes | Available to |
|---|---|---|---|
3.5.x |
3.5.x |
No |
Community |
4.0.x |
4.0.x |
No |
Community |
4.1.0 |
4.1.1 |
No |
|
4.1.0-4.1.1 |
4.1.2 |
Yes |
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It is possible to apply not consecutive patches as long as database changes are made, if were necessary |
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This manual is an example of how to patch 4.1.0 to 4.1.1. Replace those versions to specific ones of the current installation and the patch that you need to apply. |
1. Stop services
First of all, we need to stop all qvd running virtual machines and services
qa4 vm stop service qvd-hkd stop service qvd-api stop
2. Upgrade packages
After that, upgrade to QVD 4.1.1:
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If the patch version is not availabe to community, go to Commercial packages section to upgrade. Check the Patches reference table if you don’t know the type of patch that you want to apply. |
2.1. Community patches
For community patches, please, use the following commands:
2.1.1. Ubuntu
echo "deb http://theqvd.com/packages/ubuntu-xenial QVD-4.1.1 main" > /etc/apt/sources.list.d/qvd4.1_repo.list apt-get update -o Dir::Etc::sourcelist=sources.list.d/qvd4.1_repo.list -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0" apt-get upgrade -o Dir::Etc::sourcelist=sources.list.d/qvd4.1_repo.list -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
2.1.2. SLES
zypper rr QVD zypper ar http://theqvd.com/packages/sles/12SP1/QVD-4.1.1 QVD zypper ref sudo zypper update --repo QVD
2.1.3. Centos
yum-config-manager --add-repo http://theqvd.com/packages/centos/7.2/QVD-4.1.1/ yum --disablerepo=”*” --enablerepo=”theqvd.com/packages/centos/7.2/QVD-4.1.1/” update
2.2. Commercial patches
For commercial patches, please, use the following commands:
2.2.1. Ubuntu
echo "deb http://$USER:$PASSWORD@theqvd.com/commercial-packages/ubuntu/xenial QVD-4.1.1 main" > /etc/apt/sources.list.d/qvd4.1_repo.list apt-get update -o Dir::Etc::sourcelist=sources.list.d/qvd4.1_repo.list -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0" apt-get upgrade -o Dir::Etc::sourcelist=sources.list.d/qvd4.1_repo.list -o Dir::Etc::sourceparts="-" -o APT::Get::List-Cleanup="0"
2.2.2. SLES
zypper rr QVD zypper ar http://theqvd.com/commercial-packages/sles/12SP1/QVD-4.1.1 QVD zypper ref User Name: $USER Password: $PASSWORD sudo zypper update --repo QVD
2.2.3. Centos
echo "[QVD-4.1.1]" > /etc/yum.repos.d/QVD-4.1.1.repo echo "name=QVD-4.1.1" >> /etc/yum.repos.d/QVD-4.1.1.repo echo "baseurl=http://$USER:$PASSWORD@theqvd.com/commercial-packages/centos/7.2/QVD-4.1.1/" | sed 's/@\(.*@\)/%40\1/' >> /etc/yum.repos.d/QVD-4.1.1.repo echo "enabled=1" >> /etc/yum.repos.d/QVD-4.1.1.repo yum --disablerepo=”*” --enablerepo=”QVD-4.1.1” update
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$USER and $PASSWORD are the credentials received when the suscription is purchased. |
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If database changes are not necessary, upgrade is concluded. Otherwise, please, keep on reading. |
3. Backup
Upgrade the database schema keeping all the data and configuration is simple, but before doing the procedure is highly recommended to generate a backup in case something goes wrong. In order to generate the backup execute the following commands:
sudo su postgres pg_dump qvd > /tmp/qvddb4.1.0.backup exit
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Replace qvd from pg_dump command by your QVD database name if necessary |
4. Upgrade database
Finally update the database with 4.1.1 schema:
sudo su postgres psql -d qvd -c "DELETE FROM versions WHERE component='schema'" psql -d qvd -c "DELETE FROM session" exit /usr/lib/qvd/bin/perl /usr/lib/qvd/bin/qvd-deploy-db.pl --update-schema --update-from 4.1 --file /usr/lib/qvd/bin/qvd-init-data.dat
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Replace qvd from psql commands by your QVD database name if necessary |
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Replace 4.1 by the QVD major version affected by the patch (I.E.: 4.2, 4.3, 5.0…) |
5. Database rollback
If during the upgrade something went wrong, just reinstall QVD 4.1.0, and if the database achieved an invalid state you can recover it by executing:
cat /tmp/qvddb4.1.0.backup | psql dbname