Bug#830693: systemd-container: systemd-nspawn says: "Failed to create directory /str/sys/fs/selinux: Read-only file system"

[Askar Safin]

Package: systemd-container
Version: 230-5
Severity: normal

Steps to reproduce:
Download stretch alpha 7 installer, install it using qemu, then in this fresh scretch system install debootstrap and
systemd-container.
Then run:
# debootstrap stretch /str http://10.0.2.2:3142/debian
(URL here is just my local APT caching mirror, of course you can replace it with something else)
# systemd-nspawn -D /str

You will see:

root at debian:~# systemd-nspawn -D /str
Spawning container str on /str.
Press ^] three times within 1s to kill container.
Failed to create directory /str/sys/fs/selinux: Read-only file system
Failed to create directory /str/sys/fs/selinux: Read-only file system
root at str:~#

I. e. we see here some complains about "Read-only file system".

-- System Information:
Debian Release: stretch/sid
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 4.6.0-1-amd64 (SMP w/1 CPU core)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages systemd-container depends on:
ii  libacl1          2.2.52-3
ii  libblkid1        2.28-5
ii  libbz2-1.0       1.0.6-8
ii  libc6            2.22-13
ii  libcurl3-gnutls  7.47.0-1
ii  libgcrypt20      1.7.1-2
ii  liblzma5         5.1.1alpha+20120614-2.1
ii  libseccomp2      2.3.1-2
ii  libselinux1      2.5-3
ii  systemd          230-5
ii  zlib1g           1:1.2.8.dfsg-2+b1

Versions of packages systemd-container recommends:
ii  btrfs-progs        4.5.2-1
ii  libnss-mymachines  230-5

systemd-container suggests no packages.

-- no debconf information