Oracle Linux: KVM Troubleshooting
(Doc ID 2729373.1)
Last updated on MARCH 28, 2024
Applies to:
Linux OS - Version Oracle Linux 7.0 and laterOracle Cloud Infrastructure - Version N/A and later
Linux x86-64
Purpose
List KVM known issues, how to troubleshoot and resolve them.
Troubleshooting Steps
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In this Document
| Purpose |
| Troubleshooting Steps |
| Error: Log files |
| Error: Create KVM Guest VMs with ISO |
| Error: (domain_definition):9: StartTag: invalid element name |
| Error: (domain_definition):20: Unescaped '<' not allowed in attributes values |
| Error: (domain_definition):22: Opening and ending tag mismatch: domain line 1 |
| Error: (domain_definition):1: Specification mandate value for attribute type <domain ty pe='kvm'> |
| Error: failed to connect to the hypervisor using URI or Failed to connect to the hypervisor or No connection driver available |
| Error: Cannot read CA certificate '/etc/pki/CA/cacert.pem': No such file or directory or Failed to connect to the hypervisor |
| Error: Import an OVA Guest VM format template into KVM |
| Error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': Permission denied or Failed to connect to the hypervisor |
| Error: unable to connect to server at '<HOSTNAME:16509>': Connection refused |
| Error: libvirtd failed to start |
| Error: Bridge networking interface does not show up |
| Error: Biosdevname & no network |
| Error: Domain already exists |
| Error: Failed to create domain from machine.xml or Internal error Unable to find cgroup for machine |
| Error: Virtual machine vanishes from VMM on halt/reboot |
| Error: No reboot action; function is not supported |
| Error: Boot loader error after installation |
| Error: Server hung or non-recoverable errors, how to collect troubleshooting data |
| Error: Starting Virtual Machine giving error " Failed to start domain ORACLE_LINUX7" Cannot access storage file '/var/lib/libvirt/images/test_vol2.qcow2': No such file or directory |
| Error: Blue screen at boot |
| Error: No disks found or Unknown media |
| Error: During the installation of Windows, the error "A disk read error occurred" |
| Error: Once Windows is installed, if you are not able to increase the screen resolution of your virtual machine |
| Error: irq status -75 received" after Attached USB KVM |
| Error: Guest Can Reach Outside Network, But Cannot Reach Or Either Ping Host |
| Error: How to list the MAC for VMs |
| Error: How to check QEMU emulator version |
| Error: How to Clone the VM |
| Error: autostart for VM disable/enable |
| Error: forcefully shutdown of active domain |
| Error: How to create images and Disk detached/attach |
| Error: How to resize the images |
| Error: How to delete the images |
| Error: How to list/edit net on host |
| Error: How to check network error/Mac for the VM from Host |
| Error: How to check/start/stop NIC for VM from Host |
| Error: How to collect memory statistics for a running guest virtual machine |
| Error: How to display the block device errors for a virtual machine |
| Error: How to lists the capacity, allocation, and physical block sizes for a specific block device for the virtual machine |
| Error: How to display the block devices that are associated with a virtual machine |
| Error: How to inject an NMI to the guest virtual machine |
| Error: How to take consistency level snapshots for VM |
| Error: Internal error: qemu unexpectedly closed the monitor: Could not access KVM kernel module: Permission denied |
| Error: Failed to create domain from Weblogic1.xml " Cannot check QEMU binary /usr/libexec/qemu-kvm: No such file or directory " |
| Error: How to rename VM from Produciton-A to Produciton-B |