It is seemed to 813786 resolved bug you can see: From: Julian Andres Klode <j...@debian.org> To: 813786-cl...@bugs.debian.org Subject: Bug#813786: fixed in apt 1.4~beta3 Date: Thu, 05 Jan 2017 21:03:45 +0000 But now it is for local repository . I install or update a packets on my local computer with Debian 64 8.6 Unstable through 2 stages. At first, through apt-mirror (0.5.1-1 or 0.5.2-1) i update local repository on separated hard disk. At next, i install or update packets through apt, aptitude or synaptic from local repository. When i work in Debian Stable through apt (1.0.9.8.3), aptitude (0.6.11-1+b1) or synaptic (0.81.2) it is all right. But if i use Testing: apt (1.4~beta2) aptitude (0.8.4-1) synaptic (0.83+nmu1) For example : root@A1:/home/u1# apt update Rec:1 file:/media/u1/DebRepo/deb-repo/mirror/mirror.mephi.ru/debian sid InRelease [209 kB] Rec:1 file:/media/u1/DebRepo/deb-repo/mirror/mirror.mephi.ru/debian sid InRelease [209 kB] Read package lists… Ready Building dependency tree Read status information… Ready Can be updated 1 package. Run "apt list --upgradable" for the show. N: Can't drop privileges for downloading as file «/media/u1/DebRepo/deb-repo/mirror/mirror.mephi.ru/debian/dists/sid/InRelease» couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission non accordée). synaptic (0.83+nmu1), when access to the local repository, issue such reports "Cannot be reset rights for download" and failing to access the repository. Aptitude (0.8.4-1), when we update packets list (press button «u») it is showed file:/media/u1/Debian/deb-repo/mirror/mirror.mephi.ru/debian sid/main Translation.ru [Error] file not found — file:/media/u1/Debian/deb-repo/mirror/mirror.mephi.ru/debian/ dists/sid/main/i18n/Translation-ru (2: file not found) file:/media/u1/Debian/deb-repo/mirror/mirror.mephi.ru/debian sid/main [Ignored] Unstable: apt (1.4~beta3) synaptic (0.84.1) For example : root@A1:/home/u1# apt update Rec:1 file:/media/u1/DebRepo/deb-repo/mirror/mirror.mephi.ru/debian sid InRelease [209 kB] Rec:1 file:/media/u1/DebRepo/deb-repo/mirror/mirror.mephi.ru/debian sid InRelease [209 kB] Read package lists… Ready Building dependency tree Read status information… Ready Can be updated 1 package. Run "apt list --upgradable" for the show. N: Download is performed unsandboxed as root as file '/media/u1/Debian/deb-repo/mirror/mirror.mephi.ru/debian/dists/sid/InRelease' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission non accordée) By the way, if in sources.list specify a remote repository over http, then everything works. It seems that these programs can't work with «file://» access.
