[SOLVED] LCX Container BlackScreen

manjotsc · Jul 14, 2020

My 102 VM "LXC" not showing shell, it just blackscreen, I even tried rebooting proxmox, didn't help

Thanks,

Code:

arch: amd64

cores: 2

hostname: WebServer

memory: 1000

mp0: /mnt/4TB/Plex,mp=/mnt/Plex

nameserver: 192.168.40.4 192.168.40.1

net0: name=eth0,bridge=vmbr0,firewall=1,hwaddr=2A:E7:4E:5E:19:F6,ip=dhcp,type=veth

onboot: 1

ostype: ubuntu

rootfs: VMDrive:102/vm-102-disk-0.raw,size=10G

searchdomain: manjot.net

swap: 1000

unprivileged: 1

Code:

lxc-start -n 102 -F -l DEBUG -o /tmp/lxc-102.log

lxc-start: 102: utils.c: safe_mount: 1148 Invalid argument - Failed to mount "/sys/kernel/debug" onto "/usr/lib/x86_64-linux-gnu/lxc/rootfs/sys/kernel/debug"

                                                                                                                                                             lxc-start: 102: conf.c: lxc_setup_boot_id: 3250 Permission denied - Failed to mount /dev/.lxc-boot-id to /proc/sys/kernel/random/boot_id

                                                                                                                           systemd 237 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid)

Detected virtualization lxc.

Detected architecture x86-64.



Welcome to Ubuntu 18.04.4 LTS!



Set hostname to <WebServer>.

Failed to read AF_UNIX datagram queue length, ignoring: No such file or directory

File /lib/systemd/system/systemd-journald.service:36 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling.

Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)

[  OK  ] Reached target Remote File Systems.

[  OK  ] Reached target User and Group Name Lookups.

[  OK  ] Reached target Swap.

system.slice: Failed to reset devices.list: Operation not permitted

[  OK  ] Created slice System Slice.

[  OK  ] Listening on Journal Socket.

system-postfix.slice: Failed to reset devices.list: Operation not permitted

[  OK  ] Created slice system-postfix.slice.

systemd-tmpfiles-setup-dev.service: Failed to reset devices.list: Operation not permitted

         Starting Create Static Device Nodes in /dev...

system-container\x2dgetty.slice: Failed to reset devices.list: Operation not permitted

[  OK  ] Created slice system-container\x2dgetty.slice.

[  OK  ] Started Forward Password Requests to Wall Directory Watch.

user.slice: Failed to reset devices.list: Operation not permitted

[  OK  ] Created slice User and Session Slice.

[  OK  ] Reached target Slices.

[  OK  ] Listening on /dev/initctl Compatibility Named Pipe.

[  OK  ] Listening on Journal Socket (/dev/log).

systemd-modules-load.service: Failed to reset devices.list: Operation not permitted

         Starting Load Kernel Modules...

sys-kernel-debug.mount: Failed to check directory /sys/kernel/debug: Permission denied

sys-kernel-debug.mount: Failed to reset devices.list: Operation not permitted

         Mounting Kernel Debug File System...

keyboard-setup.service: Failed to reset devices.list: Operation not permitted

         Starting Set the console keyboard layout...

[  OK  ] Listening on Syslog Socket.

systemd-journald.service: Failed to reset devices.list: Operation not permitted

         Starting Journal Service...

sys-fs-fuse-connections.mount: Failed to reset devices.list: Operation not permitted

[  OK  ] Started Create Static Device Nodes in /dev.

sys-kernel-debug.mount: Mount process exited, code=exited status=32

sys-kernel-debug.mount: Failed with result 'exit-code'.

[FAILED] Failed to mount Kernel Debug File System.

See 'systemctl status sys-kernel-debug.mount' for details.

[  OK  ] Started Load Kernel Modules.

systemd-sysctl.service: Failed to reset devices.list: Operation not permitted

         Starting Apply Kernel Variables...

sys-kernel-config.mount: Failed to reset devices.list: Operation not permitted

         Mounting Kernel Configuration File System...

sys-kernel-config.mount: Mount process exited, code=exited status=32

sys-kernel-config.mount: Failed with result 'exit-code'.

[FAILED] Failed to mount Kernel Configuration File System.

See 'systemctl status sys-kernel-config.mount' for details.

[  OK  ] Started Journal Service.

         Starting Flush Journal to Persistent Storage...

[  OK  ] Started Apply Kernel Variables.

[  OK  ] Started Set the console keyboard layout.

[  OK  ] Started Dispatch Password Requests to Console Directory Watch.

[  OK  ] Reached target Paths.

[  OK  ] Reached target Local Encrypted Volumes.

[  OK  ] Reached target Local File Systems (Pre).

[  OK  ] Reached target Local File Systems.

         Starting Set console font and keymap...

         Starting ebtables ruleset management...

         Starting Tell Plymouth To Write Out Runtime Data...

         Starting AppArmor initialization...

[  OK  ] Started Flush Journal to Persistent Storage.

[  OK  ] Started Set console font and keymap.

         Starting Create Volatile Files and Directories...

[  OK  ] Started Tell Plymouth To Write Out Runtime Data.

[  OK  ] Started AppArmor initialization.

[  OK  ] Started ebtables ruleset management.

[  OK  ] Reached target Network (Pre).

         Starting Network Service...

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Stopped Network Service.

         Starting Network Service...

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Stopped Network Service.

         Starting Network Service...

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Stopped Network Service.

         Starting Network Service...

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Stopped Network Service.

         Starting Network Service...

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Stopped Network Service.

[FAILED] Failed to start Network Service.

See 'systemctl status systemd-networkd.service' for details.

[  OK  ] Started Create Volatile Files and Directories.

         Starting Update UTMP about System Boot/Shutdown...

         Starting Network Name Resolution...

[  OK  ] Reached target System Time Synchronized.

[  OK  ] Started Update UTMP about System Boot/Shutdown.

[  OK  ] Reached target System Initialization.

[  OK  ] Listening on UUID daemon activation socket.

[  OK  ] Started Message of the Day.

[  OK  ] Started Daily Cleanup of Temporary Directories.

[  OK  ] Started Clean PHP session files every 30 mins.

[  OK  ] Listening on D-Bus System Message Bus Socket.

[  OK  ] Reached target Sockets.

[  OK  ] Reached target Basic System.

         Starting Login Service...

         Starting LSB: Start/stop the postgrey daemon...

         Starting System Logging Service...

         Starting Dispatcher daemon for systemd-networkd...

         Starting Accounts Service...

         Starting LSB: saslauthd startup script...

[  OK  ] Started Regular background program processing daemon.

[  OK  ] Started D-Bus System Message Bus.

manjotsc · Jul 14, 2020

Code:

root@vms:/home/sshprox# lxc-attach 102
# systemctl status systemd-networkd.service
● systemd-networkd.service - Network Service
   Loaded: loaded (/lib/systemd/system/systemd-networkd.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2020-07-14 01:48:36 UTC; 18min ago
     Docs: man:systemd-networkd.service(8)
  Process: 155 ExecStart=/lib/systemd/systemd-networkd (code=exited, status=217/USER)
 Main PID: 155 (code=exited, status=217/USER)

Jul 14 01:48:36 WebServer systemd[1]: systemd-networkd.service: Service has no hold-off time, scheduling restart.
Jul 14 01:48:36 WebServer systemd[1]: systemd-networkd.service: Scheduled restart job, restart counter is at 5.
Jul 14 01:48:36 WebServer systemd[1]: Stopped Network Service.
Jul 14 01:48:36 WebServer systemd[1]: systemd-networkd.service: Start request repeated too quickly.
Jul 14 01:48:36 WebServer systemd[1]: systemd-networkd.service: Failed with result 'exit-code'.
Jul 14 01:48:36 WebServer systemd[1]: Failed to start Network Service.
#

Moayad · Jul 14, 2020

Hi,

Even when you login on Terminal with pct enter 102 or tried another console?

manjotsc · Jul 15, 2020

I just had to comment the ldap line in /etc/nsswitch.conf, its working fine now. It was trying to authenticate against LDAP server.

Thanks,

neail · Oct 28, 2023

Use the IPV6 Static .

Probably, a conflict in your router which has IPV6 disabled.

kkoenen · Sep 24, 2024

Add this:

lxc.apparmor.profile: unconfined

to your /etc/pve/lxc/<number>.conf

mnemonic · Oct 15, 2024

I've just created a Debian 12 LXC. I just get a black screen with the cursor after opening Console. I can type into the console, but it doens't do anything. lxc-attach 109 works.

kkoenen · Oct 15, 2024

mnemonic said:
I've just created a Debian 12 LXC. I just get a black screen with the cursor after opening Console. I can type into the console, but it doens't do anything. lxc-attach 109 works.

Add this:

lxc.apparmor.profile: unconfined

to your /etc/pve/lxc/<number>.conf

svarog · Apr 7, 2025

if you use main shell and type

pct enter <number of the machine> you can get access to the terminal too.

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[SOLVED] LCX Container BlackScreen

manjotsc

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