Can't backup my NC instance to second hard drive

After an update of my NCP, the automatic backups stopped working so tried to manually backup an instance with data.

NextcloudPi: v1.52.4
Nextcloud: 26.0.1.1
PHP: 8.2.8

I got the following error in my logs:

[ nc-backup ] (Sun Oct 15 20:28:16 BST 2023)
Installing template 'ncp-metrics.cfg.sh'...
check free space...
An unhandled exception has been thrown:
Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:142
Stack trace:
#0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1531): OC\DB\Connection->connect()
#1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1029): Doctrine\DBAL\Connection->getWrappedConnection()
#2 /var/www/nextcloud/lib/private/DB/Connection.php(264): Doctrine\DBAL\Connection->executeQuery()
#3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\DB\Connection->executeQuery()
#4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(280): Doctrine\DBAL\Query\QueryBuilder->execute()
#5 /var/www/nextcloud/lib/private/AppConfig.php(418): OC\DB\QueryBuilder\QueryBuilder->execute()
#6 /var/www/nextcloud/lib/private/AppConfig.php(184): OC\AppConfig->loadConfigValues()
#7 /var/www/nextcloud/lib/private/AppConfig.php(374): OC\AppConfig->getApps()
#8 /var/www/nextcloud/lib/private/legacy/OC_App.php(976): OC\AppConfig->getValues()
#9 /var/www/nextcloud/lib/private/Server.php(729): OC_App::getAppVersions()
#10 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#11 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#12 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#13 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#14 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(193): OC\AppFramework\Utility\SimpleContainer->get()
#16 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#17 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(118): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#18 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#19 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#20 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#21 /var/www/nextcloud/lib/private/Server.php(1110): OC\AppFramework\Utility\SimpleContainer->get()
#22 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#23 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#24 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#25 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#26 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#27 /var/www/nextcloud/lib/private/Server.php(2065): OC\AppFramework\Utility\SimpleContainer->get()
#28 /var/www/nextcloud/lib/private/Files/View.php(119): OC\Server->getLockingProvider()
#29 /var/www/nextcloud/lib/private/Server.php(464): OC\Files\View->__construct()
#30 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#31 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#32 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#33 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#34 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#35 /var/www/nextcloud/lib/private/Server.php(1467): OC\AppFramework\Utility\SimpleContainer->get()
#36 /var/www/nextcloud/lib/base.php(623): OC\Server->boot()
#37 /var/www/nextcloud/lib/base.php(1165): OC::init()
#38 /var/www/nextcloud/console.php(48): require_once('...')
#39 /var/www/nextcloud/occ(11): require_once('...')
#40 {main}Abort...
An unhandled exception has been thrown:
Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:142
Stack trace:
#0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1531): OC\DB\Connection->connect()
#1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1029): Doctrine\DBAL\Connection->getWrappedConnection()
#2 /var/www/nextcloud/lib/private/DB/Connection.php(264): Doctrine\DBAL\Connection->executeQuery()
#3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\DB\Connection->executeQuery()
#4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(280): Doctrine\DBAL\Query\QueryBuilder->execute()
#5 /var/www/nextcloud/lib/private/AppConfig.php(418): OC\DB\QueryBuilder\QueryBuilder->execute()
#6 /var/www/nextcloud/lib/private/AppConfig.php(184): OC\AppConfig->loadConfigValues()
#7 /var/www/nextcloud/lib/private/AppConfig.php(374): OC\AppConfig->getApps()
#8 /var/www/nextcloud/lib/private/legacy/OC_App.php(976): OC\AppConfig->getValues()
#9 /var/www/nextcloud/lib/private/Server.php(729): OC_App::getAppVersions()
#10 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#11 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#12 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#13 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#14 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(193): OC\AppFramework\Utility\SimpleContainer->get()
#16 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#17 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(118): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#18 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#19 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#20 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#21 /var/www/nextcloud/lib/private/Server.php(1110): OC\AppFramework\Utility\SimpleContainer->get()
#22 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#23 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#24 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#25 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#26 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#27 /var/www/nextcloud/lib/private/Server.php(2065): OC\AppFramework\Utility\SimpleContainer->get()
#28 /var/www/nextcloud/lib/private/Files/View.php(119): OC\Server->getLockingProvider()
#29 /var/www/nextcloud/lib/private/Server.php(464): OC\Files\View->__construct()
#30 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#31 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#32 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#33 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#34 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#35 /var/www/nextcloud/lib/private/Server.php(1467): OC\AppFramework\Utility\SimpleContainer->get()
#36 /var/www/nextcloud/lib/base.php(623): OC\Server->boot()
#37 /var/www/nextcloud/lib/base.php(1165): OC::init()
#38 /var/www/nextcloud/console.php(48): require_once('...')
#39 /var/www/nextcloud/occ(11): require_once('...')
#40 {main}
An unhandled exception has been thrown:
Doctrine\DBAL\Exception: Failed to connect to the database: An exception occurred in the driver: could not find driver in /var/www/nextcloud/lib/private/DB/Connection.php:142
Stack trace:
#0 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1531): OC\DB\Connection->connect()
#1 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Connection.php(1029): Doctrine\DBAL\Connection->getWrappedConnection()
#2 /var/www/nextcloud/lib/private/DB/Connection.php(264): Doctrine\DBAL\Connection->executeQuery()
#3 /var/www/nextcloud/3rdparty/doctrine/dbal/src/Query/QueryBuilder.php(345): OC\DB\Connection->executeQuery()
#4 /var/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php(280): Doctrine\DBAL\Query\QueryBuilder->execute()
#5 /var/www/nextcloud/lib/private/AppConfig.php(418): OC\DB\QueryBuilder\QueryBuilder->execute()
#6 /var/www/nextcloud/lib/private/AppConfig.php(184): OC\AppConfig->loadConfigValues()
#7 /var/www/nextcloud/lib/private/AppConfig.php(374): OC\AppConfig->getApps()
#8 /var/www/nextcloud/lib/private/legacy/OC_App.php(976): OC\AppConfig->getValues()
#9 /var/www/nextcloud/lib/private/Server.php(729): OC_App::getAppVersions()
#10 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#11 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#12 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#13 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#14 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#15 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(193): OC\AppFramework\Utility\SimpleContainer->get()
#16 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#17 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(118): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#18 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#19 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#20 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#21 /var/www/nextcloud/lib/private/Server.php(1110): OC\AppFramework\Utility\SimpleContainer->get()
#22 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#23 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#24 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#25 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#26 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#27 /var/www/nextcloud/lib/private/Server.php(2065): OC\AppFramework\Utility\SimpleContainer->get()
#28 /var/www/nextcloud/lib/private/Files/View.php(119): OC\Server->getLockingProvider()
#29 /var/www/nextcloud/lib/private/Server.php(464): OC\Files\View->__construct()
#30 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(171): OC\Server->OC\{closure}()
#31 /var/www/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php(122): OC\AppFramework\Utility\SimpleContainer->OC\AppFramework\Utility\{closure}()
#32 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(138): Pimple\Container->offsetGet()
#33 /var/www/nextcloud/lib/private/ServerContainer.php(171): OC\AppFramework\Utility\SimpleContainer->query()
#34 /var/www/nextcloud/lib/private/AppFramework/Utility/SimpleContainer.php(65): OC\ServerContainer->query()
#35 /var/www/nextcloud/lib/private/Server.php(1467): OC\AppFramework\Utility\SimpleContainer->get()
#36 /var/www/nextcloud/lib/base.php(623): OC\Server->boot()
#37 /var/www/nextcloud/lib/base.php(1165): OC::init()
#38 /var/www/nextcloud/console.php(48): require_once('...')
#39 /var/www/nextcloud/occ(11): require_once('...')
#40 {main}

I hadn’t changed anything configuration or hardware-wise apart from the update to Bullseye and a new Nextcloud version (I think 26) including going up to PHP 8.

I should also mention as a sidenote that after the update my bookmarks and news sync didn’t work anymore. Maybe this is a hint somehow…

Latest NCPv1.52.4
uses PHP 8.1.18
So PHP 8.2.8 is not supported yet.

1 Like

Oh shoot… How come all the rest is working, though? Is there a way to downgrade PHP safely or am I better off waiting for NCP to update?

Yes,

sudo apt-get install php8.1

Hmm, it’s still showing 8.2.8 after installing. I suppose I need to uninstall 8.2.8 after that?

I can’t remember excactly which steps I took. In any case it is safer to uninstall php8.2. But you can check the version you are actually using:
php --version

Sorry for resurrecting this thread, but just today I got my problem solved. Basically the outcome was: don’t ever try to tinker around with PHP versions unless you are 100% sure what you are doing.
I managed to find someone capable and nice enough to help me out professionally. Big shout out to Johan from https://www.hanssonit.se/ who patiently tracked down the problem with various PHP versions running at the same time.
I am now able to back up and update again and all my apps are running smoothly. And all of that without losing a single byte of my precious data! Kudos to you, Sir.

1 Like

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