Re: [Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
Those are also the instructions I followed. The only difference I can see is that I have a separate volume for /var on my host. -- Matt Bailey 303.871.4923 Senior Software Specialist University of Denver, UTS http://du.edu http://system42.net On Wed, Apr 14, 2010 at 10:03 AM, Serge E. Hallyn se...@us.ibm.com wrote: Quoting Pier Fumagalli (p...@betaversion.org): Sorry for not pointing it out earlier. Yes, my problem is upon startup of the *first* container on Lucid, and it works when rolling back to 0.6.3. Hrmph. I just installed a lucid container on a lucid kvm partition, basically following the directions at http://blog.bodhizazen.net/linux/lxc-configure-ubuntu-lucid-containers/ and don't reproduce this. Can you look at the config in there and see what you do differently? -serge -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
On Thu, Apr 15, 2010 at 01:39, Matt Bailey mbai...@system42.net wrote: Those are also the instructions I followed. The only difference I can see is that I have a separate volume for /var on my host. Oh, interesting: I too have a separate partition for /var/ Sorry for not reporting this at first! Pier -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
Quoting Pier Fumagalli (p...@betaversion.org): On Thu, Apr 15, 2010 at 01:39, Matt Bailey mbai...@system42.net wrote: Those are also the instructions I followed. The only difference I can see is that I have a separate volume for /var on my host. Oh, interesting: I too have a separate partition for /var/ Sorry for not reporting this at first! Pier [ summary: lxc git fixes this ] Heh, all right, I was able to reproduce after create a new VM with /var on separate partition. (was delayed bc there is a bug in kvm or lucid installer causing install to die if /var is on separate disk!) strace -f -o/tmp/ab lxc-start -n lucid1 shows umount(/) is returning -EBUSY. Which actually doesn't make a lot of sense bc /var *was* successfully unmounted. But in any case as Brian White was saying, commit c08556c6ece8ad8308f7636adb0ad25b60e3a16d in lxc git, which is not in 0.6.5, is the one making it use MNT_DETACH. And, in fact, installing lxc from git lets the same container succeed on the host where it fails with lxc 0.6.5. So looks like beside downgrading you also have the option of upgrading :) -serge -- Download Intel#174; Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
[Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
With lxc 0.6.5, I am having a problem starting a container. Here is the debug output. (FWIW, my /var is a separate partition on the host) # lxc-start -n test -l DEBUG -o $(tty) lxc-start 1271189821.303 INFO lxc_conf - tty's configured lxc-start 1271189821.303 DEBUGlxc_start - sigchild handler set lxc-start 1271189821.303 INFO lxc_start - 'test' is initialized lxc-start 1271189821.313 DEBUGlxc_conf - instanciated veth 'veth5RnMGB/veth28579F', index is '14' lxc-start 1271189821.394 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.395 DEBUGlxc_cgroup - '/cgroup/2229' renamed to '/cgroup/test' lxc-start 1271189821.554 DEBUGlxc_conf - move 'br0' to '2229' lxc-start 1271189821.554 INFO lxc_conf - 'test' hostname has been setup lxc-start 1271189821.571 DEBUGlxc_conf - 'eth0' has been setup lxc-start 1271189821.571 INFO lxc_conf - network has been setup lxc-start 1271189821.571 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.571 DEBUGlxc_conf - cgroup 'devices.deny' set to 'a' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:3 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:5 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:9 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:8 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 136:* rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:2 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 254:0 rwm' lxc-start 1271189821.572 INFO lxc_conf - cgroup has been setup lxc-start 1271189821.572 INFO lxc_conf - mount points have been setup lxc-start 1271189821.572 INFO lxc_conf - console '/dev/pts/0' mounted to '/var/lib/urizen-slicer/fs/test/dev/console' lxc-start 1271189821.572 INFO lxc_conf - 4 tty(s) has been setup lxc-start 1271189821.572 DEBUGlxc_conf - temporary mountpoint for old rootfs is './lxc-oldrootfs-y10fSV' lxc-start 1271189821.572 DEBUGlxc_conf - pivot_root syscall to '/lxc-oldrootfs-y10fSV' successful lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/pts' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/shm' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/fs/fuse/connections' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/debug' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/security' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/proc' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/run' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lock' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/lib/init/rw' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/cgroup' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/console' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty1' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty2' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty3' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty4' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var' lxc-start 1271189821.573 ERRORlxc_conf - Device or resource busy - could not unmount old rootfs lxc-start: Device or resource busy - could not unmount old rootfs lxc-start 1271189821.573 ERRORlxc_conf - failed to pivot_root to '/var/lib/urizen-slicer/fs/test' lxc-start: failed to pivot_root to '/var/lib/urizen-slicer/fs/test' lxc-start 1271189821.573 ERRORlxc_conf
Re: [Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
It seems to me this is pretty much what I'm seeing too with 0.6.5. http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00029.html In my case, I downgraded to 0.6.3 and it works just fine. Pier On Wed, Apr 14, 2010 at 05:33, Matt Bailey mbai...@system42.net wrote: With lxc 0.6.5, I am having a problem starting a container. Here is the debug output. (FWIW, my /var is a separate partition on the host) # lxc-start -n test -l DEBUG -o $(tty) lxc-start 1271189821.303 INFO lxc_conf - tty's configured lxc-start 1271189821.303 DEBUGlxc_start - sigchild handler set lxc-start 1271189821.303 INFO lxc_start - 'test' is initialized lxc-start 1271189821.313 DEBUGlxc_conf - instanciated veth 'veth5RnMGB/veth28579F', index is '14' lxc-start 1271189821.394 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.395 DEBUGlxc_cgroup - '/cgroup/2229' renamed to '/cgroup/test' lxc-start 1271189821.554 DEBUGlxc_conf - move 'br0' to '2229' lxc-start 1271189821.554 INFO lxc_conf - 'test' hostname has been setup lxc-start 1271189821.571 DEBUGlxc_conf - 'eth0' has been setup lxc-start 1271189821.571 INFO lxc_conf - network has been setup lxc-start 1271189821.571 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.571 DEBUGlxc_conf - cgroup 'devices.deny' set to 'a' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:3 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:5 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:9 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:8 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 136:* rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:2 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 254:0 rwm' lxc-start 1271189821.572 INFO lxc_conf - cgroup has been setup lxc-start 1271189821.572 INFO lxc_conf - mount points have been setup lxc-start 1271189821.572 INFO lxc_conf - console '/dev/pts/0' mounted to '/var/lib/urizen-slicer/fs/test/dev/console' lxc-start 1271189821.572 INFO lxc_conf - 4 tty(s) has been setup lxc-start 1271189821.572 DEBUGlxc_conf - temporary mountpoint for old rootfs is './lxc-oldrootfs-y10fSV' lxc-start 1271189821.572 DEBUGlxc_conf - pivot_root syscall to '/lxc-oldrootfs-y10fSV' successful lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/pts' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/shm' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/fs/fuse/connections' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/debug' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/security' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/proc' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/run' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lock' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/lib/init/rw' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/cgroup' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/console' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty1' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty2' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty3' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lib/urizen-slicer/fs/test/dev/tty4' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var' lxc-start 1271189821.573 ERRORlxc_conf - Device or resource
Re: [Lxc-users] lxc-start: Device or resource busy - could not unmount old rootfs
Isn't this a known and fixed issue? Well, fixed enough for now anyway. Daniel made a patch and I incorporated it into an opensuse build service package that is just stock 0.6.5 with only that patch and my startup/shutdown scripts, and have been using that package a lot ever since with no problems. The patch is attached. The openSUSE package incorporating it is here: http://download.opensuse.org/repositories/home:/aljex/openSUSE_11.2/x86_64/lxc-0.6.5-46.1.x86_64.rpm -- bkw On 4/13/2010 11:29 PM, Serge E. Hallyn wrote: Pier, the url you quote talks about only the second container failing. Is that your experience as well? Matt, yours fails on the very first container, right? Matt, can you confirm that downgrading to 0.6.3 (which does not use pivot_root iirc) works for you? I'll try to take a look on my own karmic server kvm instance this week. thanks, -serge Quoting Pier Fumagalli (p...@betaversion.org): It seems to me this is pretty much what I'm seeing too with 0.6.5. http://www.mail-archive.com/lxc-users@lists.sourceforge.net/msg00029.html In my case, I downgraded to 0.6.3 and it works just fine. Pier On Wed, Apr 14, 2010 at 05:33, Matt Baileymbai...@system42.net wrote: With lxc 0.6.5, I am having a problem starting a container. Here is the debug output. (FWIW, my /var is a separate partition on the host) # lxc-start -n test -l DEBUG -o $(tty) lxc-start 1271189821.303 INFO lxc_conf - tty's configured lxc-start 1271189821.303 DEBUGlxc_start - sigchild handler set lxc-start 1271189821.303 INFO lxc_start - 'test' is initialized lxc-start 1271189821.313 DEBUGlxc_conf - instanciated veth 'veth5RnMGB/veth28579F', index is '14' lxc-start 1271189821.394 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.395 DEBUGlxc_cgroup - '/cgroup/2229' renamed to '/cgroup/test' lxc-start 1271189821.554 DEBUGlxc_conf - move 'br0' to '2229' lxc-start 1271189821.554 INFO lxc_conf - 'test' hostname has been setup lxc-start 1271189821.571 DEBUGlxc_conf - 'eth0' has been setup lxc-start 1271189821.571 INFO lxc_conf - network has been setup lxc-start 1271189821.571 DEBUGlxc_cgroup - using cgroup mounted at '/cgroup' lxc-start 1271189821.571 DEBUGlxc_conf - cgroup 'devices.deny' set to 'a' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:3 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:5 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:0 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 4:1 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:9 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 1:8 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 136:* rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 5:2 rwm' lxc-start 1271189821.572 DEBUGlxc_conf - cgroup 'devices.allow' set to 'c 254:0 rwm' lxc-start 1271189821.572 INFO lxc_conf - cgroup has been setup lxc-start 1271189821.572 INFO lxc_conf - mount points have been setup lxc-start 1271189821.572 INFO lxc_conf - console '/dev/pts/0' mounted to '/var/lib/urizen-slicer/fs/test/dev/console' lxc-start 1271189821.572 INFO lxc_conf - 4 tty(s) has been setup lxc-start 1271189821.572 DEBUGlxc_conf - temporary mountpoint for old rootfs is './lxc-oldrootfs-y10fSV' lxc-start 1271189821.572 DEBUGlxc_conf - pivot_root syscall to '/lxc-oldrootfs-y10fSV' successful lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/pts' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/dev/shm' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/fs/fuse/connections' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/debug' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/sys/kernel/security' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/proc' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/run' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/var/lock' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/lib/init/rw' lxc-start 1271189821.573 DEBUGlxc_conf - umounted '/lxc-oldrootfs-y10fSV/cgroup' lxc-start 1271189821.573 DEBUGlxc_conf - umounted
