I found a solution that works for me: it is needed to add option `--pid host` option to `docker run` command.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1904695 Title: systemctl doesn't work when running from `docker run $image chroot` command (Bionic) Status in systemd package in Ubuntu: New Bug description: 1) Tested on fresh installed system using http://old-releases.ubuntu.com/releases/bionic/ubuntu-18.04-server-amd64.iso image. The release of Ubuntu via 'lsb_release -rd' Description: Ubuntu 18.04.4 LTS Release: 18.04 2) The version of the systemd package via 'apt-cache policy systemd' systemd: Installed: 237-3ubuntu10.33 Candidate: 237-3ubuntu10.42 Version table: 237-3ubuntu10.42 500 500 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages 237-3ubuntu10.38 500 500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages *** 237-3ubuntu10.33 100 100 /var/lib/dpkg/status 237-3ubuntu10 500 500 http://us.archive.ubuntu.com/ubuntu bionic/main amd64 Packages 3) Steps to reproduce the problem $ sudo su $ apt update $ apt install docker.io $ docker pull ubuntu:latest $ docker run -it -v /:/host_root:ro ubuntu:latest chroot /host_root/ systemctl -a 4) What you expected to happen: a list of all systemd units is expected to be displayed, e.g. UNIT LOAD ACTIVE SUB DESCRIPTION proc-sys-fs-binfmt_misc.automount loaded active waiting Arbitrary Executable File Formats File System Auto dev-cdrom.device loaded active plugged VBOX_CD-ROM dev-disk-by\x2did-ata\x2dVBOX_CD\x2dROM_VB2\x2d01700376.device loaded active plugged VBOX_CD-ROM ....[cut out].... 5) What happened instead: get the following error message Failed to connect to bus: No data available 6) The same steps tested on fresh installed Ubuntu Xenial OS using http://old-releases.ubuntu.com/releases/xenial/ubuntu-16.04.6-server-amd64.iso image. And in this environment the `systemctl -a` command works well. $ lsb_release -rd Description: Ubuntu 16.04.6 LTS Release: 16.04 $ apt-cache policy systemd systemd: Installed: 229-4ubuntu21.16 Candidate: 229-4ubuntu21.29 Version table: 229-4ubuntu21.29 500 500 http://us.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 229-4ubuntu21.27 500 500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 Packages *** 229-4ubuntu21.16 100 100 /var/lib/dpkg/status 229-4ubuntu4 500 500 http://us.archive.ubuntu.com/ubuntu xenial/main amd64 Packages 7) Additional notes: I tried to add `--privileged` options to `docker run` command but it didn't help. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1904695/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
