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flashplugin-installer: processing...
flashplugin-installer: downloading http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_20170613.2.orig.tar.gz

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Get:1 http://archive.canonical.com/pool/partner/a/adobe-flashplugin/adobe-flashplugin_20170613.2.orig.tar.gz [30.4 MB]

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W: Download is performed unsandboxed as root as file '/var/lib/update-notifier/package-data-downloads/partial/adobe-flashplugin_20170613.2.orig.tar.gz' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
Installing from local file /var/lib/update-notifier/package-data-downloads/partial/adobe-flashplugin_20170613.2.orig.tar.gz
Flash Plugin installed.
dpkg: error processing package virtualbox-ext-pack (--configure):
 package is in a very bad inconsistent state; you should
 reinstall it before attempting configuration