I have downloaded openwrt's container successfully, but I got the following error when I started the container.
Any advice? Thanks
root@OpenWrt:/# rm -f /var/test && lxc-start -n alpine -o /va
r/test -l DEBUG -F
[__lxc_start(2007)] warning:ret=0
root@OpenWrt:/# cat /var/test
lxc-start alpine 20230412021651.118 INFO lsm - lsm/lsm.c:lsm_init_static:38 - Initialized LSM security driver nop
lxc-start alpine 20230412021651.136 DEBUG seccomp - seccomp.c:parse_config_v2:656 - Host native arch is [1073741864]
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "reject_force_umount # comment this to allow umount -f; not recommended"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:524 - Set seccomp rule to reject force umounts
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "[all]"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "kexec_load errno 1"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:564 - Adding native rule for syscall[347:kexec_load] action[327681:errno] arch[0]
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "open_by_handle_at errno 1"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:564 - Adding native rule for syscall[371:open_by_handle_at] action[327681:errno] arch[0]
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "init_module errno 1"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:564 - Adding native rule for syscall[128:init_module] action[327681:errno] arch[0]
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "finit_module errno 1"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:564 - Adding native rule for syscall[379:finit_module] action[327681:errno] arch[0]
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:parse_config_v2:807 - Processing "delete_module errno 1"
lxc-start alpine 20230412021651.136 INFO seccomp - seccomp.c:do_resolve_add_rule:564 - Adding native rule for syscall[129:delete_module] action[327681:errno] arch[0]
lxc-start alpine 20230412021651.137 INFO seccomp - seccomp.c:parse_config_v2:1017 - Merging compat seccomp contexts into main context
lxc-start alpine 20230412021651.137 INFO start - start.c:lxc_init:884 - Container "alpine" is initialized
lxc-start alpine 20230412021651.137 INFO cgfsng - cgroups/cgfsng.c:cgfsng_monitor_create:1028 - The monitor process uses "lxc.monitor.alpine" as cgroup
lxc-start alpine 20230412021651.179 DEBUG storage - storage/storage.c:get_storage_by_name:209 - Detected rootfs type "dir"
lxc-start alpine 20230412021651.181 INFO cgfsng - cgroups/cgfsng.c:cgfsng_payload_create:1136 - The container process uses "lxc.payload.alpine" as inner and "lxc.payload.alpine" as limit cgroup
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWNS
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWPID
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWUTS
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWIPC
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWNET
lxc-start alpine 20230412021651.184 INFO start - start.c:lxc_spawn:1765 - Cloned CLONE_NEWCGROUP
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved mnt namespace via fd 17 and stashed path as mnt:/proc/3238/fd/17
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved pid namespace via fd 18 and stashed path as pid:/proc/3238/fd/18
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved uts namespace via fd 19 and stashed path as uts:/proc/3238/fd/19
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved ipc namespace via fd 20 and stashed path as ipc:/proc/3238/fd/20
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved net namespace via fd 21 and stashed path as net:/proc/3238/fd/21
lxc-start alpine 20230412021651.184 DEBUG start - start.c:lxc_try_preserve_namespace:139 - Preserved cgroup namespace via fd 22 and stashed path as cgroup:/proc/3238/fd/22
lxc-start alpine 20230412021651.185 INFO cgfsng - cgroups/cgfsng.c:cgfsng_setup_limits:2831 - Limits for the unified cgroup hierarchy have been setup
lxc-start alpine 20230412021651.186 DEBUG conf - conf.c:lxc_mount_rootfs:1432 - Mounted rootfs "/srv/lxc/alpine/rootfs" onto "/usr/lib/lxc/rootfs" with options "(null)"
lxc-start alpine 20230412021651.186 INFO conf - conf.c:setup_utsname:875 - Set hostname to "alpine"
lxc-start alpine 20230412021651.186 DEBUG network - network.c:lxc_network_setup_in_child_namespaces_common:3948 - Network device "lo" has been setup
lxc-start alpine 20230412021651.186 INFO network - network.c:lxc_setup_network_in_child_namespaces:4005 - Finished setting up network devices with caller assigned names
lxc-start alpine 20230412021651.186 INFO conf - conf.c:mount_autodev:1215 - Preparing "/dev"
lxc-start alpine 20230412021651.187 INFO conf - conf.c:mount_autodev:1276 - Prepared "/dev"
lxc-start alpine 20230412021651.188 DEBUG conf - conf.c:lxc_mount_auto_mounts:735 - Invalid argument - Tried to ensure procfs is unmounted
lxc-start alpine 20230412021651.189 DEBUG conf - conf.c:lxc_mount_auto_mounts:758 - Invalid argument - Tried to ensure sysfs is unmounted
lxc-start alpine 20230412021651.190 DEBUG conf - conf.c:mount_entry:2412 - Remounting "/sys/fs/fuse/connections" on "/usr/lib/lxc/rootfs/sys/fs/fuse/connections" to respect bind or remount options
lxc-start alpine 20230412021651.190 DEBUG conf - conf.c:mount_entry:2431 - Flags for "/sys/fs/fuse/connections" were 1070, required extra flags are 14
lxc-start alpine 20230412021651.190 DEBUG conf - conf.c:mount_entry:2475 - Mounted "/sys/fs/fuse/connections" on "/usr/lib/lxc/rootfs/sys/fs/fuse/connections" with filesystem type "none"
lxc-start alpine 20230412021651.191 DEBUG cgfsng - cgroups/cgfsng.c:__cgroupfs_mount:1541 - Mounted cgroup filesystem cgroup2 onto 19((null))
lxc-start alpine 20230412021651.191 INFO conf - conf.c:lxc_fill_autodev:1313 - Populating "/dev"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "full"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "null"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "random"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "tty"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "urandom"
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_fill_autodev:1322 - Created device node "zero"
lxc-start alpine 20230412021651.191 INFO conf - conf.c:lxc_fill_autodev:1401 - Populated "/dev"
lxc-start alpine 20230412021651.191 INFO conf - conf.c:lxc_transient_proc:3771 - Caller's PID is 1; /proc/self points to 1
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_setup_devpts_child:1747 - Attached detached devpts mount 20 to 18/pts
lxc-start alpine 20230412021651.191 DEBUG conf - conf.c:lxc_setup_devpts_child:1833 - Created "/dev/ptmx" file as bind mount target
lxc-start alpine 20230412021651.192 DEBUG conf - conf.c:lxc_setup_devpts_child:1840 - Bind mounted "/dev/pts/ptmx" to "/dev/ptmx"
lxc-start alpine 20230412021651.192 DEBUG conf - conf.c:lxc_allocate_ttys:1101 - Created tty with ptx fd 22 and pty fd 23 and index 1
lxc-start alpine 20230412021651.192 DEBUG conf - conf.c:lxc_allocate_ttys:1101 - Created tty with ptx fd 24 and pty fd 25 and index 2
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_allocate_ttys:1101 - Created tty with ptx fd 26 and pty fd 27 and index 3
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_allocate_ttys:1101 - Created tty with ptx fd 28 and pty fd 29 and index 4
lxc-start alpine 20230412021651.193 INFO conf - conf.c:lxc_allocate_ttys:1106 - Finished creating 4 tty devices
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_setup_ttys:1028 - Bind mounted "" onto "/dev/lxc/tty1"
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_setup_ttys:1028 - Bind mounted "" onto "/dev/lxc/tty2"
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_setup_ttys:1028 - Bind mounted "" onto "/dev/lxc/tty3"
lxc-start alpine 20230412021651.193 DEBUG conf - conf.c:lxc_setup_ttys:1028 - Bind mounted "" onto "/dev/lxc/tty4"
lxc-start alpine 20230412021651.193 INFO conf - conf.c:lxc_setup_ttys:1072 - Finished setting up 4 /dev/tty<N> device(s)
lxc-start alpine 20230412021651.194 INFO conf - conf.c:setup_personality:1913 - Set personality to "0lx8"
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3196 - Dropped mac_admin (33) capability
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3196 - Dropped mac_override (32) capability
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3196 - Dropped sys_time (25) capability
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3196 - Dropped sys_module (16) capability
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3196 - Dropped sys_rawio (17) capability
lxc-start alpine 20230412021651.194 DEBUG conf - conf.c:capabilities_deny:3199 - Capabilities have been setup
lxc-start alpine 20230412021651.195 NOTICE conf - conf.c:lxc_setup:4464 - The container "alpine" is set up
lxc-start alpine 20230412021651.195 DEBUG terminal - terminal.c:lxc_terminal_peer_default:702 - Using terminal "/dev/tty" as proxy
lxc-start alpine 20230412021651.196 DEBUG terminal - terminal.c:lxc_terminal_winsz:59 - Set window size to 0 columns and 0 rows
lxc-start alpine 20230412021651.196 NOTICE utils - utils.c:lxc_drop_groups:1365 - Dropped supplimentary groups
lxc-start alpine 20230412021651.196 NOTICE start - start.c:start:2162 - Exec'ing "/sbin/init"
lxc-start alpine 20230412021651.203 NOTICE start - start.c:post_start:2173 - Started "/sbin/init" with pid "3239"
lxc-start alpine 20230412021651.248 DEBUG start - start.c:signal_handler:467 - Container init process 3239 exited
lxc-start alpine 20230412021651.249 DEBUG start - start.c:__lxc_start:2115 - UNSUPPORTED(4) - Container "alpine" init exited
lxc-start alpine 20230412021651.250 INFO error - error.c:lxc_error_set_and_log:34 - Child <3239> ended on signal UNSUPPORTED(4)
lxc-start alpine 20230412021651.250 DEBUG network - network.c:lxc_delete_network:4159 - Deleted network devices