[lxc-devel] lxc-start and lucid container

Mon May 17 15:00:38 UTC 2010

You need some of the upstart services , this is how I worked through lucid containers, they mostly seem to work, although feedback is welcome:

http://blog.bodhizazen.net/linux/lxc-configure-ubuntu-lucid-containers/

http://blog.bodhizazen.net/linux/lxc-configure-debian-lenny-containers/

I am working through Fedora containers as well:

http://blog.bodhizazen.net/linux/lxc-configure-fedora-containers/

Although the Fedora stuff is still a bit rough.

----- Original Message -----
From: "Wilhelm" <wilhelm.meier at fh-kl.de>
To: "lxc devel" <lxc-devel at lists.sourceforge.net>, lxc-users at lists.sourceforge.net
Sent: Monday, May 17, 2010 8:31:06 AM
Subject: [lxc-devel] lxc-start and lucid container

Hi all,

I have a slight problem using a lucid container (on a lucid host): if I
start the container via lxc-start, no console login starts up. I have to
use lxc-console from a differnet terminal. If I use a lenny container,
lxc-start shows the start up log messages and finally the getty/login.

I'm using the lxc-packages from lucid:

root at ubuntu01:~# dpkg -l lxc
Gewünscht=Unbekannt/Installieren/R=Entfernen/P=Vollständig
Löschen/Halten
| Status=Nicht/Installiert/Config/U=Entpackt/Fehlgeschl. Konfiguration/
Halb installiert/Trigger erWartet/Trigger anhängig
|/ Fehler?=(kein)/R=Neuinstallation notwendig (Status, Fehler:
GROSS=schlecht)
||/ Name
Version Beschreibung
+++-======================================-======================================-============================================================================================
ii lxc
0.6.5-1 Linux containers userspace tools

The start trace is:

root at ubuntu01:/var/lib/lxc/lucid# lxc-start -n lucid
--logfile=/dev/stderr --logpriority=TRACE -- /sbin/init --verbose
lxc-start 1274106224.666 INFO lxc_conf - tty's configured
lxc-start 1274106224.669 DEBUG lxc_start - sigchild handler set
lxc-start 1274106224.669 INFO lxc_start - 'lucid' is initialized
lxc-start 1274106224.681 DEBUG lxc_conf - instanciated macvlan
'mcwEvnvl', index is '8' and mode '0'
lxc-start 1274106224.699 DEBUG lxc_cgroup - using cgroup
mounted at '/lxc-cgroup'
lxc-start 1274106224.699 DEBUG lxc_cgroup -
'/lxc-cgroup/20474' renamed to '/lxc-cgroup/lucid'
lxc-start 1274106224.711 DEBUG lxc_conf - move 'eth1' to '20474'
lxc-start 1274106224.711 INFO lxc_conf - 'lucid' hostname has
been setup
lxc-start 1274106224.713 DEBUG lxc_conf - mac address
'4a:49:43:49:79:bd' on 'eth0' has been setup
lxc-start 1274106224.714 DEBUG lxc_conf - 'eth0' has been setup
lxc-start 1274106224.714 INFO lxc_conf - network has been setup
lxc-start 1274106224.715 DEBUG lxc_cgroup - using cgroup
mounted at '/lxc-cgroup'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.deny' set to 'a'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 1:3 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 1:5 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 5:1 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 5:0 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 4:0 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 4:1 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 1:9 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 1:8 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 136:* rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 5:2 rwm'
lxc-start 1274106224.716 DEBUG lxc_conf - cgroup
'devices.allow' set to 'c 254:0 rwm'
lxc-start 1274106224.716 INFO lxc_conf - cgroup has been setup
lxc-start 1274106224.716 INFO lxc_conf - mount points have
been setup
lxc-start 1274106224.716 INFO lxc_conf - console '/dev/pts/2'
mounted to '/var/lib/lxc/lucid/rootfs/dev/console'
lxc-start 1274106224.716 INFO lxc_conf - 4 tty(s) has been setup
lxc-start 1274106224.717 DEBUG lxc_conf - temporary mountpoint
for old rootfs is './lxc-oldrootfs-E19bcw'
lxc-start 1274106224.717 DEBUG lxc_conf - pivot_root syscall
to '/lxc-oldrootfs-E19bcw' successful
lxc-start 1274106225.062 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/dev/pts' lxc-start 1274106225.091 DEBUG lxc_conf
- umounted
'/lxc-oldrootfs-E19bcw/dev/shm' lxc-start 1274106225.162 DEBUG lxc_conf
- umounted
'/lxc-oldrootfs-E19bcw/sys/fs/fuse/connections' lxc-start 1274106225.178
DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/sys/kernel/debug' lxc-start 1274106225.194 DEBUG
lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/sys/kernel/security' lxc-start 1274106225.210
DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/proc' lxc-start 1274106225.226 DEBUG lxc_conf -
umounted '/lxc-oldrootfs-E19bcw/var/run'
lxc-start 1274106225.243 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lock' lxc-start 1274106225.258 DEBUG lxc_conf
- umounted
'/lxc-oldrootfs-E19bcw/lib/init/rw' lxc-start 1274106225.274 DEBUG
lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/boot' lxc-start 1274106225.290 DEBUG lxc_conf -
umounted '/lxc-oldrootfs-E19bcw/lxc-cgroup'
lxc-start 1274106225.310 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lib/lxc/lucid/rootfs/dev/console' lxc-start
1274106225.327 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lib/lxc/lucid/rootfs/dev/tty1' lxc-start
1274106225.342 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lib/lxc/lucid/rootfs/dev/tty2' lxc-start
1274106225.359 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lib/lxc/lucid/rootfs/dev/tty3' lxc-start
1274106225.374 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/var/lib/lxc/lucid/rootfs/dev/tty4' lxc-start
1274106225.390 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw/dev' lxc-start 1274106225.406 DEBUG lxc_conf -
umounted '/lxc-oldrootfs-E19bcw/sys'
lxc-start 1274106225.423 DEBUG lxc_conf - umounted
'/lxc-oldrootfs-E19bcw' lxc-start 1274106225.424 INFO lxc_conf - pivoted
to '/tmp/lxc-rNhQTX7'
lxc-start 1274106225.424 INFO lxc_conf - created new pts instance
lxc-start 1274106225.424 DEBUG lxc_conf - capabilities has
been setup
lxc-start 1274106225.424 NOTICE lxc_conf - 'lucid' is setup.
lxc-start 1274106225.424 NOTICE lxc_start - exec'ing '/sbin/init'
lxc-start 1274106225.425 NOTICE lxc_start - '/sbin/init'
started with pid '20474'
lxc-start 1274106225.425 DEBUG lxc_utils - closing fd '1'
lxc-start 1274106225.425 DEBUG lxc_utils - closing fd '0'
lxc-start 1274106225.425 DEBUG lxc_utils - closed all
inherited file descriptors
init: Handling startup event
init: tty1 goal changed from stop to start
init: tty1 state changed from waiting to starting
init: Handling starting event
init: tty1 state changed from starting to pre-start
init: tty1 state changed from pre-start to spawned
init: tty1 main process (2)
init: tty1 state changed from spawned to post-start
init: tty1 state changed from post-start to running
init: Handling started event

and the processes inside the container are:

root at ubuntu01:~# lxc-ps --lxc aux
CONTAINER USER PID %CPU %MEM VSZ RSS TTY STAT START
TIME COMMAND
lucid root 20474 0.0 0.2 2260 640 ? Ss 16:23
0:00 /sbin/init
lucid root 20487 0.0 0.1 1720 492 pts/3 Ss+ 16:23
0:00 /sbin/getty -8 38400 tty1
root at ubuntu01:~#

(well, I disabled all upstart services but tty1)

Any hints?

-- Wilhelm

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