This is still happening on that fresh wily dist-upgraded to xenial, even with the latest apt 1.2.3 and gcc 5.3.1-1
Processing triggers for libc-bin (2.21-0ubuntu6) ...
W: Can't drop privileges for downloading as file '/root/.synaptic/tmp//tmp_cl' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
The main issue sems to be that .root folder LOCKED, that disable to subfolder creation.
@Brian
This is still happening on that fresh wily dist-upgraded to xenial, even with the latest apt 1.2.3 and gcc 5.3.1-1
Processing triggers for libc-bin (2.21-0ubuntu6) ... .synaptic/ tmp//tmp_ cl' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
W: Can't drop privileges for downloading as file '/root/
The main issue sems to be that .root folder LOCKED, that disable to subfolder creation.
Is that locked .root folder expected ?