Comment 98 for bug 1522675

First, recall user _apt was added recently. Second, not all comments appear to have the same original; some ones refer access rights, so some comments suggest change owner or ACL of some directory. However, another comments point out something that appears to be a parsing error over the directory path. For example, in comment #94, the path:

 "W: Download is performed unsandboxed as root as file '/root/.synaptic/tmp//tmp_cl' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Keine Berechtigung)"

looks quite extraneous, because it has an empty directory name at "/tmp/ /tmp_cl". The error I got is quite similar, except it says "/tmp/ /tmp_sh", but in my system I later found directory .synaptic/tmp was empty.

For the first problem, I do no see user _apt included in group sudo. And for the second, I remember that while doing a system upgrade I was notified about a change in MIME types. This could be a trace for a parsing error. Hope this comment may help to solve the warning.