[Lxc-users] lxc.mount and mount.entry not working
Hi, Sorry if I sound like a complete idiot but after spending the last 3 hours trying to figure out why my mounts are not working I have given up. LXC mounts them ( i see this in the logs) en lxc_conf unmounts them (possibly due to pivot_root). Some background: Host running LXC: Debian squeeze Version of LXC: 0.7.2-1 I have create an LXC container using the /usr/lib/lxc/templates/lxc-debian template and this went fine. Now on my host i have a USB disk mounted to /mnt/1TB-Movies and I would like to use it in the LXC container I just created. So I add the following to the lxc config file: lxc.mount.entry=/mnt/1TB-Movies /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies none rw,bind 0 0 When I now start the LXC container and I set the debugging to DEBUG I notice the following: lxc-start 1290693817.212 INFO lxc_conf - cgroup has been setup lxc-start 1290693817.212 DEBUGlxc_conf - mounted proc on /var/lib/lxc/lxc-file//rootfs/proc, type proc lxc-start 1290693817.212 DEBUGlxc_conf - mounted devpts on /var/lib/lxc/lxc-file//rootfs/dev/pts, type devpts lxc-start 1290693817.212 DEBUGlxc_conf - mounted sysfs on /var/lib/lxc/lxc-file//rootfs/sys, type sysfs lxc-start 1290693817.212 DEBUGlxc_conf - remounting /mnt/1TB-Movies on /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies to respect bind or remount options lxc-start 1290693817.212 DEBUGlxc_conf - mounted /mnt/1TB-Movies on /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies, type none lxc-start 1290693817.212 INFO lxc_conf - mount points have been setup lxc-start 1290693817.212 INFO lxc_conf - console has been setup lxc-start 1290693817.212 INFO lxc_conf - 4 tty(s) has been setup lxc-start 1290693817.212 DEBUGlxc_conf - mounted '/var/lib/lxc/lxc-file//rootfs' on '/usr/lib/lxc' lxc-start 1290693817.212 DEBUGlxc_conf - created '/usr/lib/lxc/mnt' directory lxc-start 1290693817.212 DEBUGlxc_conf - mountpoint for old rootfs is '/usr/lib/lxc/mnt' lxc-start 1290693817.212 DEBUGlxc_conf - pivot_root syscall to '/usr/lib/lxc' successful lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev/pts' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev/shm' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/sys' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/proc' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/lib/init/rw' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/boot' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/cgroup' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/1TB-Timemachine' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/500GB-TV' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/old-sdb3' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/proc' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/pts' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/sys' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/mnt2/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/console' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty1' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty2' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty3' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty4' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt2/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt' lxc-start 1290693817.213 INFO lxc_conf - pivoted to '/usr/lib/lxc' This basically tells me that pivot_root is umounting the mount I just made. Can anyone help me with this??? I have also tried putting the mount inside the fstab for the container but same problem. -- Geordy Korte -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] lxc.mount and mount.entry not working
Quoting Geordy Korte (gko...@gmail.com): This basically tells me that pivot_root is umounting the mount I just made. Can anyone help me with this??? I have also tried putting the mount inside the fstab for the container but same problem. Have you entered the container to verify? I would have guessed that the unmounting is just a part of unmounting the *old* fs tree. You have /var/lib/lxc, under which is the container's rootfs, and the debug tells you that the original / is left under /var/lib/lxc/mnt. Meaning that after the pivot_root, you have '/' as the container's root (the old /var/lib/lxc), and '/mnt' containing the old '/'. Now lxc recursively unmounts /mnt. It's just a part of the pivot_root procedure. (see man 8 pivot_root) -- Increase Visibility of Your 3D Game App Earn a Chance To Win $500! Tap into the largest installed PC base get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev ___ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
Re: [Lxc-users] lxc.mount and mount.entry not working
Hi, i have the same problem before. lxc 0.7.3 change the mount directory. now is /usr/lib/lxc/rootfs/ for all container. but is not shared with other container. try lxc.mount.entry=/mnt/1TB-Movies /usr/lib/lxc/rootfs/mnt2/1TB-Movies none rw,bind 0 0 May be, this is the solution. greeting, Christian. sorry for my bad english. Hi, Sorry if I sound like a complete idiot but after spending the last 3 hours trying to figure out why my mounts are not working I have given up. LXC mounts them ( i see this in the logs) en lxc_conf unmounts them (possibly due to pivot_root). Some background: Host running LXC: Debian squeeze Version of LXC: 0.7.2-1 I have create an LXC container using the /usr/lib/lxc/templates/lxc-debian template and this went fine. Now on my host i have a USB disk mounted to /mnt/1TB-Movies and I would like to use it in the LXC container I just created. So I add the following to the lxc config file: lxc.mount.entry=/mnt/1TB-Movies /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies none rw,bind 0 0 When I now start the LXC container and I set the debugging to DEBUG I notice the following: lxc-start 1290693817.212 INFO lxc_conf - cgroup has been setup lxc-start 1290693817.212 DEBUGlxc_conf - mounted proc on /var/lib/lxc/lxc-file//rootfs/proc, type proc lxc-start 1290693817.212 DEBUGlxc_conf - mounted devpts on /var/lib/lxc/lxc-file//rootfs/dev/pts, type devpts lxc-start 1290693817.212 DEBUGlxc_conf - mounted sysfs on /var/lib/lxc/lxc-file//rootfs/sys, type sysfs lxc-start 1290693817.212 DEBUGlxc_conf - remounting /mnt/1TB-Movies on /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies to respect bind or remount options lxc-start 1290693817.212 DEBUGlxc_conf - mounted /mnt/1TB-Movies on /var/lib/lxc/lxc-file//rootfs/mnt2/1TB-Movies, type none lxc-start 1290693817.212 INFO lxc_conf - mount points have been setup lxc-start 1290693817.212 INFO lxc_conf - console has been setup lxc-start 1290693817.212 INFO lxc_conf - 4 tty(s) has been setup lxc-start 1290693817.212 DEBUGlxc_conf - mounted '/var/lib/lxc/lxc-file//rootfs' on '/usr/lib/lxc' lxc-start 1290693817.212 DEBUGlxc_conf - created '/usr/lib/lxc/mnt' directory lxc-start 1290693817.212 DEBUGlxc_conf - mountpoint for old rootfs is '/usr/lib/lxc/mnt' lxc-start 1290693817.212 DEBUGlxc_conf - pivot_root syscall to '/usr/lib/lxc' successful lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev/pts' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev/shm' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/sys' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/proc' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/lib/init/rw' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/boot' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/cgroup' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/1TB-Timemachine' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/500GB-TV' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/mnt/old-sdb3' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/proc' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/pts' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/sys' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/mnt2/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/console' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty1' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty2' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty3' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/var/lib/lxc/lxc-file/rootfs/dev/tty4' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt2/1TB-Movies' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt/dev' lxc-start 1290693817.213 DEBUGlxc_conf - umounted '/mnt' lxc-start 1290693817.213 INFO lxc_conf - pivoted to '/usr/lib/lxc' This basically tells me that pivot_root is umounting the mount I just made. Can anyone help me with this??? I have also tried putting the mount inside the fstab for the container but same problem. -- Geordy Korte -- Increase Visibility
