Package: apt Version: 1.4.6 The sandbox warning is unnecessary when apt is installing a local file that shouldn't really be downloaded. Please don't show this warning in that case.
sudo apt install ./gnome-getting-started-docs_3.24.0-1ubuntu1_all.deb Reading package lists... Done Building dependency tree Reading state information... Done Note, selecting 'gnome-getting-started-docs' instead of './gnome-getting-started-docs_3.24.0-1ubuntu1_all.deb' The following packages will be DOWNGRADED: gnome-getting-started-docs 0 upgraded, 0 newly installed, 1 downgraded, 0 to remove and 0 not upgraded. Need to get 0 B/11.1 MB of archives. After this operation, 2,048 B disk space will be freed. Do you want to continue? [Y/n] y Get:1 /home/jeremy/devel/ubuntu/gnome-getting-started-docs/gnome-getting-started-docs_3.24.0-1ubuntu1_all.deb gnome-getting-started-docs all 3.24.0-1ubuntu1 [11.1 MB] dpkg: warning: downgrading gnome-getting-started-docs from 3.24.1-0ubuntu2 to 3.24.0-1ubuntu1 (Reading database ... 182902 files and directories currently installed.) Preparing to unpack .../gnome-getting-started-docs_3.24.0-1ubuntu1_all.deb ... Unpacking gnome-getting-started-docs (3.24.0-1ubuntu1) over (3.24.1-0ubuntu2) ... Setting up gnome-getting-started-docs (3.24.0-1ubuntu1) ... N: Download is performed unsandboxed as root as file '/home/jeremy/devel/ubuntu/gnome-getting-started-docs/gnome-getting-started-docs_3.24.0-1ubuntu1_all.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied) Thanks, Jeremy Bicha