what kernel version you are using? 3.16 has a bug that gives this error, you have to install 3.19 (vivid lts?) or rollback to a older kernel
On Tue, Sep 1, 2015 at 4:38 PM, Lucian Cherish <[email protected]> wrote: > I started experimenting with lxc on Ubuntu 14.04 early August, and I was > fairly successful in getting lxc installed, started, cloned and all that. > > However, today, I found out that I was not able to start any of my > unprivildged containers anymore. The strange thing is that /proc mounts > fine, but /sys is not fine. They look identical on my host system: > > /dev/mapper/pe110--vg-root on / type ext4 (rw,errors=remount-ro) > proc on /proc type proc (rw,noexec,nosuid,nodev) > sysfs on /sys type sysfs (rw,noexec,nosuid,nodev) > none on /sys/fs/cgroup type tmpfs (rw) > none on /sys/fs/fuse/connections type fusectl (rw) > none on /sys/kernel/debug type debugfs (rw) > none on /sys/kernel/security type securityfs (rw) > none on /sys/firmware/efi/efivars type efivarfs (rw) > udev on /dev type devtmpfs (rw,mode=0755) > devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620) > tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755) > none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880) > none on /run/shm type tmpfs (rw,nosuid,nodev) > none on /run/user type tmpfs > (rw,noexec,nosuid,nodev,size=104857600,mode=0755) > none on /sys/fs/pstore type pstore (rw) > /dev/sda2 on /boot type ext2 (rw) > /dev/sda1 on /boot/efi type vfat (rw) > systemd on /sys/fs/cgroup/systemd type cgroup > (rw,noexec,nosuid,nodev,none,name=systemd) > > I decided to build a new one, and it cannot be started either using > standard command. > > Here is the command I used to create the container: > > lxc-create -t download -n new1 -- -d ubuntu -r trusty -a amd64 > > And I tried to start it with the following command: > > lxc-start -n new1 --logfile new1log --logpriority DEBUG > > and here is the output of new1log: > > lxc-start 1441147653.986 INFO lxc_start_ui - > lxc_start.c:main:265 - using rcfile /home/user/.local/share/lxc/new1/config > lxc-start 1441147653.987 INFO lxc_confile - > confile.c:config_idmap:1325 - read uid map: type u nsid 0 hostid 100000 > range 1000000 > lxc-start 1441147653.987 INFO lxc_confile - > confile.c:config_idmap:1325 - read uid map: type g nsid 0 hostid 100000 > range 1000000 > lxc-start 1441147653.987 WARN lxc_log - log.c:lxc_log_init:316 - > lxc_log_init called with log already initialized > lxc-start 1441147653.988 WARN lxc_cgmanager - > cgmanager.c:cgm_get:954 - do_cgm_get exited with error > lxc-start 1441147653.988 INFO lxc_lsm - lsm/lsm.c:lsm_init:48 - > LSM security driver AppArmor > lxc-start 1441147653.989 DEBUG lxc_conf - > conf.c:lxc_create_tty:3665 - allocated pty '/dev/pts/2' (5/6) > lxc-start 1441147653.989 DEBUG lxc_conf - > conf.c:lxc_create_tty:3665 - allocated pty '/dev/pts/3' (7/8) > lxc-start 1441147653.989 DEBUG lxc_conf - > conf.c:lxc_create_tty:3665 - allocated pty '/dev/pts/5' (9/10) > lxc-start 1441147653.989 DEBUG lxc_conf - > conf.c:lxc_create_tty:3665 - allocated pty '/dev/pts/6' (11/12) > lxc-start 1441147653.989 INFO lxc_conf - > conf.c:lxc_create_tty:3676 - tty's configured > lxc-start 1441147653.989 DEBUG lxc_start - > start.c:setup_signal_fd:247 - sigchild handler set > lxc-start 1441147653.989 DEBUG lxc_console - > console.c:lxc_console_peer_default:500 - opening /dev/tty for console peer > lxc-start 1441147653.989 DEBUG lxc_console - > console.c:lxc_console_peer_default:506 - using '/dev/tty' as console > lxc-start 1441147653.989 DEBUG lxc_console - > console.c:lxc_console_sigwinch_init:179 - 5239 got SIGWINCH fd 17 > lxc-start 1441147653.989 DEBUG lxc_console - > console.c:lxc_console_winsz:88 - set winsz dstfd:14 cols:182 rows:55 > lxc-start 1441147654.163 INFO lxc_start - start.c:lxc_init:443 - > 'new1' is initialized > lxc-start 1441147654.163 DEBUG lxc_start - > start.c:__lxc_start:1058 - Not dropping cap_sys_boot or watching utmp > lxc-start 1441147654.163 INFO lxc_start - start.c:lxc_spawn:802 > - Cloning a new user namespace > lxc-start 1441147654.163 INFO lxc_cgroup - > cgroup.c:cgroup_init:62 - cgroup driver cgmanager initing for new1 > lxc-start 1441147662.268 NOTICE lxc_start - start.c:do_start:656 - > switching to gid/uid 0 in new user namespace > lxc-start 1441147662.270 DEBUG lxc_conf - > conf.c:setup_rootfs:1611 - mounted > '/home/user/.local/share/lxc/new1/rootfs' on '/usr/lib/x86_64-linux-gnu/lxc' > lxc-start 1441147662.270 INFO lxc_conf - > conf.c:setup_utsname:900 - 'new1' hostname has been setup > lxc-start 1441147662.270 DEBUG lxc_conf - > conf.c:setup_netdev:2784 - 'eth0' has been setup > lxc-start 1441147662.270 INFO lxc_conf - > conf.c:setup_network:2805 - network has been setup > lxc-start 1441147662.270 DEBUG lxc_conf - > conf.c:check_autodev:3906 - Set exec command to /sbin/init > lxc-start 1441147662.270 INFO lxc_conf - > conf.c:check_autodev:3944 - Autodev not required. > lxc-start 1441147662.270 DEBUG lxc_conf - conf.c:mount_entry:2106 > - mounted 'proc' on '/usr/lib/x86_64-linux-gnu/lxc/proc', type 'proc' > lxc-start 1441147662.271 ERROR lxc_conf - conf.c:mount_entry:2049 > - Operation not permitted - failed to mount 'sysfs' on > '/usr/lib/x86_64-linux-gnu/lxc/sys' > lxc-start 1441147662.271 ERROR lxc_conf - conf.c:lxc_setup:4163 - > failed to setup the mount entries for 'new1' > lxc-start 1441147662.271 ERROR lxc_start - start.c:do_start:688 - > failed to setup the container > lxc-start 1441147662.271 ERROR lxc_sync - sync.c:__sync_wait:51 - > invalid sequence number 1. expected 2 > lxc-start 1441147662.302 ERROR lxc_start - > start.c:__lxc_start:1080 - failed to spawn 'new1' > lxc-start 1441147662.309 ERROR lxc_start_ui - > lxc_start.c:main:342 - The container failed to start. > lxc-start 1441147662.309 ERROR lxc_start_ui - > lxc_start.c:main:346 - Additional information can be obtained by setting > the --logfile and --logpriority options. > > Any ideas? > > LC > > > _______________________________________________ > lxc-users mailing list > [email protected] > http://lists.linuxcontainers.org/listinfo/lxc-users >
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