Package: docker.io Version: 1.8.3~ds1-2 Severity: important Hi,
I have just installed docker.io to try it out, and it kept failing complaining that "Devices cgroup isn't mounted". I checked that /sys/fs/cgroup/ was mounted correctly (and not from fstab), and it took me a while to realise that there are more trees to mount. I see that docker recommends cgroupfs-mount, but since I don't install recommends by default, I did not get it. Once I installed cgroupfs-mount, docker started correctly. So I'd say this should be a dependency, but maybe there is a reason for the recommends? In any case, the init script should check this and give the user some guidance (including not exiting successfully), as this is certainly not obvious for most users. -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (500, 'testing'), (100, 'unstable'), (50, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.3.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_IE.UTF-8, LC_CTYPE=en_IE.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: sysvinit (via /sbin/init) Versions of packages docker.io depends on: ii adduser 3.114 ii init-system-helpers 1.29 ii iptables 1.6.0-2 ii libapparmor1 2.10-3+b1 ii libc6 2.22-3 ii libdevmapper1.02.1 2:1.02.116-1+b1 ii libsqlite3-0 3.11.1-1 ii perl 5.22.1-9 Versions of packages docker.io recommends: ii ca-certificates 20160104 ii cgroupfs-mount 1.2 ii git 1:2.7.0-1 ii xz-utils 5.1.1alpha+20120614-2.1 Versions of packages docker.io suggests: pn aufs-tools <none> pn btrfs-tools <none> ii debootstrap 1.0.79 pn lxc <none> pn rinse <none> pn zfs-fuse | zfsutils <none> -- no debconf information
