I have not used the lxc-create to create the container, instead I have created the rootfs folder inside container p1 and mounted the native rootfs and then started the container with “lxc-start -n p1 --logfile=/tmp/log.txt --logpriority=debug” and observed the container is not started successfully and below is the error log and config file
config file:
#created the p1 container to gets the hands on
lxc.rootfs = /var/lib/lxc/p1/rootfs
lxc.utsname = p1
lxc.tty = 1
lxc.pts = 1
Default capabilities
lxc.cap.drop = sys_module mac_admin mac_override sys_time
lxc.hook.pre-mount = /var/lib/lxc/p1/pre-mount.sh
#lxc.hook.pre-start = /var/lib/lxc/p1/pre-mount.sh
#mount points to the native root file system
#lxc.mount.entry = /dev/tty dev/tty none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/console dev/console none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/tty0 dev/tty0 none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/tty1 dev/tty1 none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/null dev/null none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/urandom dev/urandom none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/errmem dev/errmem none bind,optional,create=file 0 0
#lxc.mount.entry = /dev/random dev/random none bind,optional,create=file 0 0
#lxc.mount.entry = none dev/shm tmpfs rw,nosuid,nodev,create=dir
#lxc.mount.entry = /bin bin none ro,bind 0 0
#lxc.mount.entry = /lib lib none ro,bind 0 0
#lxc.mount.entry = /sbin sbin none ro,bind 0 0
#lxc.mount.entry = /usr/bin usr/bin none ro,bind 0 0
#lxc.mount.entry = /usr/lib usr/lib none ro,bind 0 0
#lxc.mount.entry = /usr/sbin usr/sbin none ro,bind 0 0
#lxc.mount.entry = /run/dbus run/dbus none rw,bind,create=dir 0 0
#lxc.mount.entry = /proc proc none ro,bind 0 0
Multi Service Container (MSC)
#lxc.network.type = veth
#lxc.network.link = lxcbr0
#lxc.network.flags = up
#lxc.network.ipv4 = 192.168.1.41/25
#control group
lxc.mount.auto = cgroup:mixed proc:mixed sys:mixed
#uid and gid mapped later point
#define log levels and different config
#lxc.loglevel=0
Debug logs:
lxc-start p1 20181016145052.937 INFO lxc_start_ui - tools/lxc_start.c:main:280 - using rcfile /var/lib/lxc/p1/config
lxc-start p1 20181016145052.949 INFO lxc_container - lxccontainer.c:do_lxcapi_start:883 - Attempting to set proc title to [lxc monitor] /var/lib/lxc p1
lxc-start p1 20181016145052.959 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145052.959 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145052.959 DEBUG lxc_start - start.c:setup_signal_fd:301 - Set SIGCHLD handler with file descriptor: 7.
lxc-start p1 20181016145052.962 DEBUG console - console.c:lxc_console_peer_default:450 - process does not have a controlling terminal
lxc-start p1 20181016145052.962 INFO lxc_start - start.c:lxc_init:680 - container “p1” is initialized
lxc-start p1 20181016145052.962 INFO lxc_cgroup - cgroups/cgroup.c:cgroup_init:67 - cgroup driver cgroupfs initing for p1
lxc-start p1 20181016145052.993 INFO lxc_start - start.c:lxc_spawn:1259 - Cloned CLONE_NEWNS.
lxc-start p1 20181016145052.997 INFO lxc_start - start.c:lxc_spawn:1259 - Cloned CLONE_NEWPID.
lxc-start p1 20181016145052.997 INFO lxc_start - start.c:lxc_spawn:1259 - Cloned CLONE_NEWUTS.
lxc-start p1 20181016145052.997 INFO lxc_start - start.c:lxc_spawn:1259 - Cloned CLONE_NEWIPC.
lxc-start p1 20181016145052.997 INFO lxc_start - start.c:lxc_spawn:1259 - Cloned CLONE_NEWNET.
lxc-start p1 20181016145053.351 INFO lxc_conf - conf.c:run_script_argv:457 - Executing script “/var/lib/lxc/p1/pre-mount.sh” for container “p1”, config section “lxc”.
lxc-start p1 20181016145053.548 DEBUG lxc_conf - conf.c:run_buffer:429 - Script /var/lib/lxc/p1/pre-mount.sh p1 lxc pre-mount with output: /bin:
lxc-start p1 20181016145053.647 ERROR lxc_conf - conf.c:lxc_setup_rootfs:1296 - No such file or directory - Failed to access to “/usr/lib/lxc/rootfs”. Check it is present.
lxc-start p1 20181016145053.647 ERROR lxc_conf - conf.c:do_rootfs_setup:3105 - failed to setup rootfs for ‘p1’
lxc-start p1 20181016145053.648 ERROR lxc_conf - conf.c:lxc_setup:3146 - Error setting up rootfs mount after spawn
lxc-start p1 20181016145053.648 ERROR lxc_start - start.c:do_start:944 - Failed to setup container “p1”.
lxc-start p1 20181016145053.649 ERROR lxc_sync - sync.c:__sync_wait:57 - An error occurred in another process (expected sequence number 5)
lxc-start p1 20181016145053.649 DEBUG lxc_network - network.c:lxc_delete_network:3124 - Deleted network devices
lxc-start p1 20181016145053.649 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145053.649 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145053.649 ERROR lxc_container - lxccontainer.c:wait_on_daemonized_start:760 - Received container state “ABORTING” instead of “RUNNING”
lxc-start p1 20181016145053.649 ERROR lxc_start_ui - tools/lxc_start.c:main:371 - The container failed to start.
lxc-start p1 20181016145053.650 ERROR lxc_start_ui - tools/lxc_start.c:main:373 - To get more details, run the container in foreground mode.
lxc-start p1 20181016145053.650 ERROR lxc_start_ui - tools/lxc_start.c:main:375 - Additional information can be obtained by setting the --logfile and --logpriority options.
lxc-start p1 20181016145053.657 ERROR lxc_start - start.c:__lxc_start:1459 - Failed to spawn container “p1”.
lxc-start p1 20181016145053.657 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145053.657 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145053.704 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
lxc-start p1 20181016145053.704 WARN lxc_monitor - monitor.c:lxc_monitor_fifo_send:111 - Failed to open fifo to send message: No such file or directory.
Can you please support me what went wrong? the mounting of native rootfs to container rootfs will not work?