On Fri, Jul 28, 2017 at 01:31:26PM +0000, jenkins@jenkins.debian.net wrote: > See > https://jenkins.debian.net/job/chroot-installation_stretch_install_education-standalone/387//console This failure (and various other ones) seems to be caused by wrong permissions of / in the build environment (0700). From console output: Adding system-user for exim (v4) 2017-07-28 13:27:43 Exim configuration error in line 684 of /var/lib/exim4/config.autogenerated.tmp: user mail was not found Invalid new configfile /var/lib/exim4/config.autogenerated.tmp, not installing /var/lib/exim4/config.autogenerated.tmp to /var/lib/exim4/config.autogenerated dpkg: error processing package exim4-config (--configure): subprocess installed post-installation script returned error exit status 1 The real reason seems to be an unreadable /etc/passwd file, caused by / having 0700 permissions; for more details, see: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=844220#65 Wolfgang
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