[debian-edu-commits] [Debian Wiki] Update of "DebianEdu/Documentation/Stretch/Upgrades" by WolfgangSchweer

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The "DebianEdu/Documentation/Stretch/Upgrades" page has been changed by WolfgangSchweer:
https://wiki.debian.org/DebianEdu/Documentation/Stretch/Upgrades?action=diff&rev1=27&rev2=28

Comment:
add qemu/kvm workaround; thanks Giorgio for the hint.

  By default {{{apt-get}}} keeps downloaded packages, {{{apt}}} removes them from the cache (after successful installation).
  
  If {{{apt}}} finishes with an error, try to fix it and/or run {{{apt -f install}}} and then {{{apt -y full-upgrade}}} once again.
+ 
+ If the upgraded system fails to boot on qemu/kvm, see DebianBug:844446. Changing the architecture away from Broadwell in QEMU might help.
  
  === Upgrading the main server ===