Thanks for the help. So what I miss is how to debug /sbin/init in a container ? I saw that lxc-start has an extra argument to execute the init command like lxc-start -n container /sbin/init. But I'm using lxd and didn't find any equivalent command for lxc start.
2017-01-21 21:36 GMT+01:00 Fajar A. Nugraha <l...@fajar.net>: > On Sun, Jan 22, 2017 at 3:08 AM, jf <jfme...@gmail.com> wrote: > >> Hi, >> >> I'm using Ubuntu 16.04 with the default Ubuntu lxd package. >> I'm trying to start a Ubuntu 8.04 container, but I didn't find any >> image. So I built and imported an image from deboostrap. >> >> > Whenever possibly, don't try to run any end-of-life distro, as it could > open yourself to various security hole, and possibly harm others (e.g. when > your setup is compromized by botnet). Even if it's in container. > > > >> When I start the container, /sbin/init doesn't init anything and "lxc >> stop" hangs: >> * lxc start ub8 >> * lxc exec ub8 ps auwwx >> USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND >> root 1 0.0 0.0 4020 1428 ? Ss Jan22 0:00 >> /sbin/init >> root 25 0.0 0.0 14856 1700 ? Rs+ Jan22 0:00 ps auwwx >> >> >> If I run these 3 commands: >> * lxc start ub8 >> * lxc exec ub8 /etc/init.d/rc S >> * lxc exec ub8 /etc/init.d/rc 2 >> everything goes fine: the system is initialized and I can stop it. >> >> Do I miss something ? Why do I need to manually run /etc/init.d/rc ? >> >> > Short version: some changes are necessary to run inside a container. Newer > distro versions (e.g. xenial) has those changes built in, older ones don't. > > See https://github.com/lxc/lxc/blob/master/templates/lxc-centos.in on > what some of the changes look like for a sysvinit-based distro (this > includes editing /etc/inittab). > > -- > Fajar > > _______________________________________________ > lxc-users mailing list > lxc-users@lists.linuxcontainers.org > http://lists.linuxcontainers.org/listinfo/lxc-users >
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