stdin: Not a typewriter dbus-daemon[809]: [session uid=999 pid=809] Activating service name='org.gtk.vfs.Daemon' requested by ':1.0' (uid=999 pid=810 comm="" label="unconfined") dbus-daemon[809]: [session uid=999 pid=809] Successfully activated service 'org.gtk.vfs.Daemon' dbus-daemon[809]: [session uid=999 pid=809] Activating service name='org.gtk.vfs.Metadata' requested by ':1.0' (uid=999 pid=810 comm="" label="unconfined") fuse: device not found, try 'modprobe fuse' first dbus-daemon[809]: [session uid=999 pid=809] Successfully activated service 'org.gtk.vfs.Metadata' (gvfsd-metadata:821): GUdev-CRITICAL **: 15:57:26.564: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed (gvfsd-metadata:821): GUdev-CRITICAL **: 15:57:26.564: g_udev_device_has_property: assertion 'G_UDEV_IS_DEVICE (device)' failed A connection to the bus can't be made Using CD-ROM mount point /cdrom/ Identifying... [6df1acc01896d472320c268fee3761ff-2] Scanning disc for index files... Found 4 package indexes, 0 source indexes, 0 translation indexes and 1 signatures Found label 'Lubuntu 18.04 LTS _Bionic Beaver_ - Beta amd64 (20180405)' This disc is called: 'Lubuntu 18.04 LTS _Bionic Beaver_ - Beta amd64 (20180405)' Copying package lists...gpgv: Signature made Thu Apr 5 22:06:37 2018 UTC gpgv: using RSA key D94AA3F0EFE21092 gpgv: Good signature from "Ubuntu CD Image Automatic Signing Key (2012) " Reading Package Indexes... 0% Reading Package Indexes... Done Writing new source list Source list entries for this disc are: deb cdrom:[Lubuntu 18.04 LTS _Bionic Beaver_ - Beta amd64 (20180405)]/ bionic main multiverse restricted universe Repeat this process for the rest of the CDs in your set. grep: /root/etc/apt/apt.conf.d/50unattended-upgrades: No such file or directory