According to this page https://debianforum.de/forum/viewtopic.php?f=33&t=169585&hilit=entropie
This newly introduced fix in 4.15.0-24 is the cause 'random: fix crng_ready() test' when it's reverted (like in debian 4.9.88-1+deb9u1) boot is fine again 'linux (4.9.88-1+deb9u1) stretch-security; urgency=high [...] * Revert "random: fix crng_ready() test" (Closes: #897599), reopening CVE-2018-1108' another solution could be to install 'haveged' as proposed and verified here https://debianforum.de/forum/viewtopic.php?f=33&t=169585&hilit=entropie and here https://forum.ubuntuusers.de/topic/nix-geht-mehr-nach-installation-und- update/ ** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2018-1108 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1779827 Title: failure to boot with linux-image-4.15.0-24-generic To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1779827/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs