Package: dracut-core Version: 044+109-1 Severity: important If no host filesystems are detected (which can happen if running inside a nspawn container in a btrfs subvolume, and btrfs-tools is not installed), then dracut hangs in 90kernel-modules, because $host_fs_types is empty and thus instmods tries a read.
I note that this code is very different from upstream (either the 44 tag or current master), maybe the fix is to update the code from upstream? -- System Information: Debian Release: stretch/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1, 'experimental-debug'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.6.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages dracut-core depends on: ii cpio 2.11+dfsg-5 ii kmod 22-1.1 ii kpartx 0.6.2-2 ii libc6 2.23-5 ii libkmod2 22-1.1 ii pkg-config 0.29-4 ii udev 231-5 ii util-linux 2.28.1-1 Versions of packages dracut-core recommends: pn console-setup <none> ii cryptsetup 2:1.7.0-2 ii dmraid 1.0.0.rc16-7 ii dmsetup 2:1.02.133-1 ii lvm2 2.02.164-1 ii mdadm 3.4-4 dracut-core suggests no packages. -- no debconf information