Package: linux-image-4.18.0-0.bpo.1-amd64
Debian stable (updated) with kernel 4.18.0-0.bpo.1-amd64 #1 SMP Debian 4.18.6-1~bpo9+1 (2018-09-13) x86_64 GNU/Linux updating from standard kernel to backports, the boot is very slow (gdm login appears after ~3 minutes) boot process is stuck before "crng init done" as you can see by messages: Oct 10 18:06:24 gozzi-MBP NetworkManager[598]: <info> [1539187584.4027] dhcp6 (wlp4s0b1): state changed bound -> done Oct 10 18:09:15 gozzi-MBP kernel: [ 194.178094] random: crn Workaround that solves the problem: install the package haveged workaround tried but not working install backport headers install rng-tools hardware informations Manufacturer: Apple Inc. Product Name: Mac-C3EC7CD22292981F Version: MacBookPro10,1 thanks for the effort stefano