diff --git a/src/modules/partition/core/PartUtils.cpp b/src/modules/partition/core/PartUtils.cpp
index 1a35193aa..814f3d018 100644
--- a/src/modules/partition/core/PartUtils.cpp
+++ b/src/modules/partition/core/PartUtils.cpp
@@ -91,7 +91,6 @@ canBeResized( PartitionCoreModule* core, const QString& partitionPath )
 OsproberEntryList
 runOsprober( PartitionCoreModule* core )
 {
-    cDebug() << "BEGIN" << Q_FUNC_INFO;
     QString osproberOutput;
     QProcess osprober;
     osprober.setProgram( "os-prober" );
@@ -142,7 +141,6 @@ runOsprober( PartitionCoreModule* core )
 
     Calamares::JobQueue::instance()->globalStorage()->insert( "osproberLines", osproberCleanLines );
 
-    cDebug() << "END" << Q_FUNC_INFO;
     return osproberEntries;
 }
 
diff --git a/src/modules/partition/core/PartitionCoreModule.cpp b/src/modules/partition/core/PartitionCoreModule.cpp
index a440e7155..c6b7b36cf 100644
--- a/src/modules/partition/core/PartitionCoreModule.cpp
+++ b/src/modules/partition/core/PartitionCoreModule.cpp
@@ -109,8 +109,6 @@ PartitionCoreModule::init()
     CoreBackend* backend = CoreBackendManager::self()->backend();
     auto devices = backend->scanDevices( true );
 
-    m_osproberLines = PartUtils::runOsprober( this );
-
     // Remove the device which contains / from the list
     for ( auto it = devices.begin(); it != devices.end(); )
         if ( hasRootPartition( *it ) )
@@ -122,11 +120,18 @@ PartitionCoreModule::init()
     {
         auto deviceInfo = new DeviceInfo( device );
         m_deviceInfos << deviceInfo;
-
-        deviceInfo->partitionModel->init( device, m_osproberLines );
     }
     m_deviceModel->init( devices );
 
+    // The following PartUtils::runOsprober call in turn calls PartUtils::canBeResized,
+    // which relies on a working DeviceModel.
+    m_osproberLines = PartUtils::runOsprober( this );
+
+    for ( auto deviceInfo : m_deviceInfos )
+    {
+        deviceInfo->partitionModel->init( deviceInfo->device.data(), m_osproberLines );
+    }
+
     m_bootLoaderModel->init( devices );
 
     if ( QDir( "/sys/firmware/efi/efivars" ).exists() )