> You have added the non-standard charset "iso88591" in /etc/locales.gen. > When doing so you should provide the corresponding charset file in > /usr/share/i18n/charmaps.
Thanks for the hint - I did not touch the file, but had "d-i localechooser/supported-locales multiselect de_DE.UTF-8, en_GB.UTF-8, en_US.UTF-8, en_US.iso88591" in the preseed file used for stretch installation. That had worked for jessie. > Could you please confirm that just removing this broken entry fixes your > problem? Yes, fixed it - hoping now that "en_US ISO-8859-1" will work when preseeding the next stretch system. In the long run I hope to get rid of the backup software we have to use here, as with C.UTF-8 not all files on our servers are backed up. Please close and thanks a lot, greetings Hermann -- Netzwerkadministration/Zentrale Dienste, Interdiziplinaeres Zentrum fuer wissenschaftliches Rechnen der Universitaet Heidelberg IWR; INF 205; 69120 Heidelberg; Tel: (06221)54-14405 Fax: -14427 Email: hermann.la...@iwr.uni-heidelberg.de