2016-07-23 01:15:01 +0200 Puppet (err): Could not update: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install linux-image-amd64' returned 100: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? 2016-07-23 01:15:01 +0200 /Stage[main]/Essentials/Package[linux-image-amd64]/ensure (err): change from 3.16+63 to 4.6+74~bpo8+1 failed: Could not update: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install linux-image-amd64' returned 100: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? 2016-07-23 01:15:01 +0200 Puppet (err): Could not update: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install linux-headers-amd64' returned 100: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? 2016-07-23 01:15:01 +0200 /Stage[main]/Essentials/Package[linux-headers-amd64]/ensure (err): change from purged to latest failed: Could not update: Execution of '/usr/bin/apt-get -q -y -o DPkg::Options::=--force-confold install linux-headers-amd64' returned 100: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?