Use privileged if have problems with systemd inside docker:
docker run --name centos01.server -ti -d --privileged=true centos "/sbin/init"
Failed to connect to bus: Host is down
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Category Archives: Virtualization
kvm find ip address
sudo virsh net-list
sudo virsh net-dhcp-leases default | grep server_hostname
virt-install console exit (deatech)
CTRL+Shift+]
‘utf-8’ codec can’t decode byte 0xf0 in position 0: invalid continuation byte virt-install
Error: --disk path=/var/lib/libvirt/images/centos7.qcow2,size=15,device=disk,bus=virtio,format=qcow2: 'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte
sudo virt-install --connect=qemu:///system --network=bridge:virbr0 --extra-args="ks=http://192.168.0.101:1111/centos7.cfg console=tty0 console=ttyS0,115200" --name=aaa --disk path=/var/lib/libvirt/images/centos7.qcow2,size=15,device=disk,bus=virtio,format=qcow2 --ram 1500 --vcpus=1 --check-cpu --accelerate --hvm --location=http://mirror.cherryservers.com/centos/7/os/x86_64/ --nographics
virsh # pool-list
Name State Autostart
------------------------------------
boot-scratch active yes
images active yes
tmp active yes
virtio-win active yes
vit active yes
virsh # pool-destroy vit
Pool vit destroyed
virsh # pool-destroy virtio-win
Pool virtio-win destroyed
'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte error was because of virStorageVolGetName:
File "/usr/lib64/python3.7/site-packages/libvirt.py", line 3650, in name
ret = libvirtmod.virStorageVolGetName(self._o)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xf0 in position 0: invalid continuation byte
[Mon, 17 Feb 2020 15:26:54 virt-install 57908] DEBUG (cli:263) File "/usr/share/virt-manager/virt-install", line 1005, in
virt-install should be working now again
error: unpacking of archive failed on file /usr/sbin/suexec;5e440e82: cpio: cap_set_file
Running transaction
Installing : httpd-2.4.6-90.el7.centos.x86_64 1/1
Error unpacking rpm package httpd-2.4.6-90.el7.centos.x86_64
error: unpacking of archive failed on file /usr/sbin/suexec;5e440e82: cpio: cap_set_file
Verifying : httpd-2.4.6-90.el7.centos.x86_64 1/1
Failed:
httpd.x86_64 0:2.4.6-90.el7.centos
/var/lib/lxc/new.server.lt/config
lxc.cap.drop =
lxc.cap.drop = mac_admin mac_override setpcap
lxc.cap.drop = sys_module sys_nice sys_pacct
lxc.cap.drop = sys_rawio sys_time
echo “%_netsharedpath /sys:/proc” >> /etc/rpm/macros.dist
Transaction test succeeded
Running transaction
Installing : httpd-2.4.6-90.el7.centos.x86_64
openvz stop service in group of nodes
for i in `prlctl list | awk '$5 ~ /database_servers*/ {print $5}'`; do prlctl exec $i service firewalld stop; done
Restarting network (via systemctl): Job for network.service canceled
service network restart
Restarting network (via systemctl): Job for network.service canceled.
[FAILED]
systemctl restart network
Job for network.service canceled.
If cyberpanel server network is down (venet0:
vi /etc/fstab
#/usr/.tempdisk /tmp ext4 loop,rw,noexec,nosuid,nodev,nofail 0 0
#/tmp /var/tmp none bind 0 0
service network restart
Restarting network (via systemctl):
[ OK ]
docker file stdout
cd /var/log/apache2
lrwxrwxrwx 1 root root 11 Feb 17 2018 access.log -> /dev/stdout
lrwxrwxrwx 1 root root 11 Feb 17 2018 error.log -> /dev/stderr
It means you can get logs records from host node:
tailf /var/log/messages
Setting up the GPG keyring ERROR: Unable to fetch GPG key from keyserver
You can try skip validation:
lxc-create -n ubuntu1 -t download — –no-validate –dist ubuntu –release bionic –arch amd64
unsupported driver name ‘file’ for disk ‘hdc’
virsh add iso image like this:
virsh edit some_vm
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/var/lib/libvirt/images/systemrescuecd-6.0.2.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
virsh enable autostart
virsh autostart srv_name
Domain srv_name marked as autostarted
Too many open files in system openvz
id: cannot find name for user ID 0
-bash: cannot make pipe for command substitution: Too many open files in system
-bash: /etc/profile.d/less.sh: Too many open files in system
-bash: /etc/profile.d/mc.sh: Too many open files in system
-bash: /etc/profile.d/vim.sh: Too many open files in system
-bash: /etc/profile.d/which-2.sh: Too many open files in system
-bash: /root/.bash_profile: Too many open files in system
-bash-3.2# logout
-bash: /root/.bash_logout: Too many open files in system
-bash: /etc/bash.bash_logout: Too many open files in system
exited from CT XXXX
Fast fix:
vzctl restart XXXX
kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
ExecStart=/usr/bin/kubelet $KUBELET_KUBECONFIG_ARGS $KUBELET_CONFIG_ARGS $KUBELET_KUBEADM_ARGS $KUBELET_EXTRA_ARGS (code=exited, status=255)
journalctl -u kubelet
kubelet[25843]: F0310 21:08:58.395379 25843 server.go:189] failed to load Kubelet config file /var/lib/kubelet/config.yaml, error
kubelet.service: main process exited, code=exited, status=255/n/a
Fix:
kubeadm init
[preflight] Pulling images required for setting up a Kubernetes cluster
[preflight] This might take a minute or two, depending on the speed of your internet connection
[preflight] You can also perform this action in beforehand using ‘kubeadm config images pull’
[kubelet-start] Writing kubelet environment file with flags to file “/var/lib/kubelet/kubeadm-flags.env”
[kubelet-start] Writing kubelet configuration to file “/var/lib/kubelet/config.yaml”
[kubelet-start] Activating the kubelet service
[certs] Using certificateDir folder “/etc/kubernetes/pki”
[certs] Generating “etcd/ca” certificate and key
[certs] Generating “etcd/server” certificate and key
…
[ERROR FileContent–proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables contents are not set to 1
vi /etc/sysctl.conf
net.bridge.bridge-nf-call-iptables = 1
sysctl -p
than
kubeadm init
kubeadm [ERROR Swap]: running with swap on is not supported. Please disable swap
swapoff -a
Remove swap from /etc/fstab