Can't start lxc after upgrade to ubuntu 20.04

[krzykar]

pct config:

arch: amd64
cores: 4
hostname: librenms
memory: 8192
net0: name=eth0,bridge=vmbr0,gw=192.168.2.254,hwaddr=06:41:66:19:12:5B,ip=192.168.2.152/24,tag=666,type=veth
net1: name=eth1,bridge=vmbr0,hwaddr=FE:F9:A2:B7:E2:92,ip=10.2.20.200/24,tag=610,type=veth
onboot: 1
ostype: ubuntu
rootfs: local:114/vm-114-disk-0.raw,size=32G
swap: 4098
unprivileged: 1

In attachment debug log

 

[Moayad]

Hi,

thanks for the log config, what is the output of pveversion -v?

WARN utils - utils.c:lxc_rm_rf:1789 - Device or resource busy - Failed to delete "/sys/fs/cgroup/unified//lxc.monitor/114/lxc.pivot"

could you try to umount the CT container?
pct unmount <VMID>

 

[krzykar]

root@proxmox:/var/lib/vz# pct unmount 114
no lock found trying to remove 'mounted'  lock

root@proxmox:/var/lib/vz# pveversion -v
proxmox-ve: 6.3-1 (running kernel: 5.4.78-2-pve)
pve-manager: 6.3-3 (running version: 6.3-3/eee5f901)
pve-kernel-5.4: 6.3-3
pve-kernel-helper: 6.3-3
pve-kernel-5.3: 6.1-6
pve-kernel-5.4.78-2-pve: 5.4.78-2
pve-kernel-5.3.18-3-pve: 5.3.18-3
pve-kernel-5.3.18-2-pve: 5.3.18-2
pve-kernel-5.3.13-1-pve: 5.3.13-1
pve-kernel-5.3.10-1-pve: 5.3.10-1
ceph-fuse: 12.2.11+dfsg1-2.1+b1
corosync: 3.0.4-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: residual config
ifupdown2: 3.0.0-1+pve3
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.16-pve1
libproxmox-acme-perl: 1.0.7
libproxmox-backup-qemu0: 1.0.2-1
libpve-access-control: 6.1-3
libpve-apiclient-perl: 3.1-3
libpve-common-perl: 6.3-2
libpve-guest-common-perl: 3.1-3
libpve-http-server-perl: 3.1-1
libpve-storage-perl: 6.3-3
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 4.0.3-1
lxcfs: 4.0.3-pve3
novnc-pve: 1.1.0-1
proxmox-backup-client: 1.0.6-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.4-3
pve-cluster: 6.2-1
pve-container: 3.3-2
pve-docs: 6.3-1
pve-edk2-firmware: 2.20200531-1
pve-firewall: 4.1-3
pve-firmware: 3.1-3
pve-ha-manager: 3.1-1
pve-i18n: 2.2-2
pve-qemu-kvm: 5.1.0-7
pve-xtermjs: 4.7.0-3
qemu-server: 6.3-2
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-2
zfsutils-linux: 0.8.5-pve1