[SOLVED] LXC not starting anymore

[dsh]

Hello, Everyone.

My production server shutdown unexpectedly. Then when I rebooted my ZFS pool was missing and I imported manually. Proxmox boot up and VM are running fine. However, LXC containers are not starting.

Log file shows this.

lxc-start 1467859119.691 INFO     lxc_start_ui - lxc_start.c:main:264 - using rcfile /var/lib/lxc/100/config
      lxc-start 1467859119.692 WARN     lxc_confile - confile.c:config_pivotdir:1817 - lxc.pivotdir is ignored.  It will soon become an error.
      lxc-start 1467859119.693 WARN     lxc_cgmanager - cgmanager.c:cgm_get:994 - do_cgm_get exited with error
      lxc-start 1467859119.693 INFO     lxc_lsm - lsm/lsm.c:lsm_init:48 - LSM security driver AppArmor
      lxc-start 1467859119.693 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .reject_force_umount  # comment this to allow umount -f;  not recommended.
      lxc-start 1467859119.693 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for reject_force_umount action 0
      lxc-start 1467859119.693 INFO     lxc_seccomp - seccomp.c:do_resolve_add_rule:216 - Setting seccomp rule to reject force umounts

      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for reject_force_umount action 0
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:do_resolve_add_rule:216 - Setting seccomp rule to reject force umounts

      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .[all].
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .kexec_load errno 1.
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for kexec_load action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for kexec_load action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .open_by_handle_at errno 1.
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for open_by_handle_at action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for open_by_handle_at action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .init_module errno 1.
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for init_module action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for init_module action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .finit_module errno 1.
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for finit_module action 327681
      lxc-start 1467859119.694 WARN     lxc_seccomp - seccomp.c:do_resolve_add_rule:233 - Seccomp: got negative # for syscall: finit_module
      lxc-start 1467859119.694 WARN     lxc_seccomp - seccomp.c:do_resolve_add_rule:234 - This syscall will NOT be blacklisted
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for finit_module action 327681
      lxc-start 1467859119.694 WARN     lxc_seccomp - seccomp.c:do_resolve_add_rule:233 - Seccomp: got negative # for syscall: finit_module
      lxc-start 1467859119.694 WARN     lxc_seccomp - seccomp.c:do_resolve_add_rule:234 - This syscall will NOT be blacklisted
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:324 - processing: .delete_module errno 1.
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:426 - Adding native rule for delete_module action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:429 - Adding compat rule for delete_module action 327681
      lxc-start 1467859119.694 INFO     lxc_seccomp - seccomp.c:parse_config_v2:436 - Merging in the compat seccomp ctx into the main one
      lxc-start 1467859119.694 INFO     lxc_conf - conf.c:run_script_argv:362 - Executing script '/usr/share/lxc/hooks/lxc-pve-prestart-hook' for container '100', config section 'lxc'
      lxc-start 1467859120.099 ERROR    lxc_conf - conf.c:run_buffer:342 - Script exited with status 2
      lxc-start 1467859120.099 ERROR    lxc_start - start.c:lxc_init:436 - failed to run pre-start hooks for container '100'.
      lxc-start 1467859120.099 ERROR    lxc_start - start.c:__lxc_start:1170 - failed to initialize the container
      lxc-start 1467859120.099 ERROR    lxc_start_ui - lxc_start.c:main:344 - The container failed to start.
      lxc-start 1467859120.099 ERROR    lxc_start_ui - lxc_start.c:main:348 - Additional information can be obtained by setting the --logfile and --logpriority options.

 

[dsh]

When checked for zpool status, I've realized my log and cache disk name has been changed from "sda" to device's full name, say ata-samsung-ssd. So I've created new zfs cache with following command.

zpool set cachefile=/etc/zfs/zpool.cache rpool

Then once I rebooted everything is working as it should be.