X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=man%2Fsystemd-nspawn.xml;h=bec233c1ca9eb9c056df7dc72a385483b3de8a16;hb=8d35dae708ffbb88f1b023964913d3d53d4a7418;hp=7d450f912c1c617c17d6bd41a32eb0d87374963a;hpb=79640424059328268b9fb6c5fa8eb777b27a177e;p=elogind.git
diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml
index 7d450f912..bec233c1c 100644
--- a/man/systemd-nspawn.xml
+++ b/man/systemd-nspawn.xml
@@ -123,10 +123,10 @@
see each other. The PID namespace separation of the
two containers is complete and the containers will
share very few runtime objects except for the
- underlying file system. It is however possible to
- enter an existing container, see
- Example 4 below.
-
+ underlying file system. Use
+ machinectl1's
+ login command to request an
+ additional login prompt in a running container.
systemd-nspawn implements the
+
+
+
+ Specify one or more
+ additional capabilities to drop for
+ the container. This allows running the
+ container with fewer capabilities than
+ the default (see above).
+
+
@@ -370,6 +380,21 @@
creates read-only bind
mount.
+
+
+
+
+ Specifies an
+ environment variable assignment to
+ pass to the init process in the
+ container, in the format
+ NAME=VALUE. This
+ may be used to override the default
+ variables or to set additional
+ variables. This parameter may be used
+ more than once.
+
+
@@ -409,24 +434,29 @@
boots an OS in a namespace container in it.
-
+ Example 4
- To enter the container, PID of one of the
- processes sharing the new namespaces must be used.
- systemd-nspawn prints the PID
- (as viewed from the outside) of the launched process,
- and it can be used to enter the container.
+ # mv ~/arch-tree /var/lib/container/arch
+# systemctl enable systemd-nspawn@arch.service
+# systemctl start systemd-nspawn@arch.service
+
+ This makes the Arch Linux container part of the
+ multi-user.target on the host.
+
+
+
+
+ Example 5
- # nsenter -m -u -i -n -p -t $PID
+ # btrfs subvolume snapshot / /.tmp
+# systemd-nspawn --private-network -D /.tmp -b
- nsenter1
- is part of
- util-linux.
- Kernel support for entering namespaces was added in
- Linux 3.8.
+ This runs a copy of the host system in a
+ btrfs snapshot.
+
Exit status
@@ -439,11 +469,11 @@
systemd1,
chroot1,
- unshare1,
yum8,
debootstrap8,
pacman8,
- systemd.slice5
+ systemd.slice5,
+ machinectl1