On Fri, Jun 05, 2020 at 08:30:16AM +0200, Sven Hartge wrote: > Marc Shapiro <marcns...@gmail.com> wrote: > > > I also don't understand why it says that it could not create temporary > > files in /tmp. I am running this as root and /tmp is owned by root. > > What am I missing? > > /tmp (and /var/tmp/) should have the following permissions and rights: > > root:root 1777/drwxrwxrwt > > apt runs its I/O processes as a different user "_apt" and if /tmp does > not have the sticky bit set, then it cannot create any files there, > causing the error.
To be completely clear, it's the world-write bit that allows _apt to create files/subdirectories there. The sticky bit prevents other users from removing or renaming said files/subdirectories while _apt is using them.
