Proxmox
Links
- Proxmox VE Administration Guide
- https://pve.proxmox.com/wiki Wiki
- Monitoring Proxmox with Zabbix
- Proxmox Backup Server
- Backup and Restore
Documentation
Directory structure
/etc/pve
/var/lib/vz
/var/lib/vz/template/iso
Proxmox cluster
Cluster manager
pvecm status pvecm nodes
HA status
ha-manager status
Monitoring proxmox with zabbix
https://github.com/takala-jp/zabbix-proxmox
FAQ
Proxmox API call failed: Couldn't authenticate user: zabbix@pve
Funky characters in password string?
FAQ
Cores, sockets and vCPUs
vCPUs is what the vm uses, equals sockets*cores
Check if qemu agent is running
See if IP is shown under Summary, also
qm agent 105 ping
Stop all proxmox services
systemctl stop pve-cluster systemctl stop pvedaemon systemctl stop pveproxy systemctl stop pvestatd
switch to community repository
cat /etc/apt/sources.list.d/pve-enterprise.list #deb https://enterprise.proxmox.com/debian/pve buster pve-enterprise
echo "deb http://download.proxmox.com/debian/pve buster pve-no-subscription" > /etc/apt/sources.list.d/pve-no-subscription.list
apt update
W: (pve-apt-hook) You are attempting to remove the meta-package 'proxmox-ve'!
cehck sources.list :)
Backups
unexpected property 'prune-backups' (500)
When for example Add: iSCSI Uncheck "Keep all backups" in "Backup retention"
FAILED 00:00:02 unable to activate storage
TODO
VM 101 Backup failed: VM is locked (snapshot)
Check if there's no snapshot running (how?)
qm unlock 101
can't acquire lock '/var/run/vzdump.lock' - got timeout
Check if vzdump is running, otherwise kill it (cluster?)
VM 101 Backup failed::= VM is locked (snapshot-delete)
Check /etc/pve/qemu-server/101.conf for 'snapstate'
If that says 'delete' for a snapshot try deleting the snapshot:
qm delsnapshot 101 snapname
If that throws like Failed to find logical volume 'pve/snap_vm-101-disk-0_saving'
qm delsnapshot 101 snapname --force
to get it out of 101.conf
Error: VM quit/powerdown failed - got timeout
qm stop VMID
if that complains about lock, remove the lock and try again
a used vhost backend has no free memory slots left
You have not turned on protection against thin pools running out of space.
serial console from command line
qm terminal <id}
enable serial console in guest
looks like this is not needed:
systemctl enable serial-getty@ttyS0.service
in /etc/default/grub
GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0 console=tty0"
ttyS0 is for qm terminal, tty0 is for the "console" buttion in UI
- debian based
update-grub
- redhat based
grub2-mkconfig --output=/boot/grub2/grub.cfg
add
serial0: socket
to /etc/pve/qemu-server/[vmid].conf and restart
agetty: /dev/ttyS0: not a device
systemctl status useless again, means the serial bit is missing from <vmid>.conf
TASK ERROR: command 'apt-get update' failed: exit code 100
subtle way of telling you to get subscription of at least change the sources list
Import vmdk to lvm
https://pve.proxmox.com/wiki/Qemu/KVM_Virtual_Machines#_importing_virtual_machines_and_disk_images
Can't apply changes to memory allocation
Maybe try enabling NUMA in CPU settings
Adding hardware shows orange
something is not supported (Options->Hotplug)
"Connection error 401: no ticket"
Login session expired?
can't lock file '/var/lock/qemu-server/lock-102.conf' - got timeout (500)
Maybe someone else has/had webui open
== TASK ERROR: Can't use string ("keep-all=0,keep-last=3") as a HASH ref while "strict refs" in use at /usr/share/perl5/PVE/VZDump.pm line 502. ==
Classic, means incorrect syntax in your /etc/pve/storage.cfg
The current guest configuration does not support taking new snapshots
You're using raw instead of qcow2. Convert: Hardware->Hard disk "Move Disk"
WARNING: Device /dev/dm-21 not initialized in udev database even after waiting 10000000 microseconds.
Until someone fixes it:
udevadm trigger
"connection error - server offline?"
Try reconnection browser
Find vm name by id
grep name /etc/pve/nodes/*/qemu-server/101.conf |head -n 1
Started Proxmox VE replication runner.
??
Find ID by name
grep -l "name: <NAME>" /etc/pve/nodes/*/qemu-server/*conf| sed 's/^.*\/\([0-9]*\)\.conf/\1/g'
Can't migrate VM with local CD/DVD
Remove the CD :)
