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
and here
https://forum.ubuntuusers.de/topic/nix-geht-mehr-nach-installation-und-update/
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/