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Cole Robinson
0d1579572a
Explicitly error on uri=qemu://system
It's a fairly common error that a user tries to connect to a URI like qemu://system or qemu://session (missing a slash). This errors like: $ virsh --connect qemu://session error: failed to connect to the hypervisor error: Unable to resolve address 'session' service '16514': No address associated with hostname If you already know that the standard qemu URI has 3 slashes, that error will make it obvious enough. But new user's may not get it. There's even a RHEL support page explicitly mentioning it!: https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Troubleshooting-Common_libvirt_errors_and_troubleshooting.html Catch this error early in libvirt.c virConnectOpen for qemu (and vbox which has similar rules https://bugzilla.redhat.com/show_bug.cgi?id=1038304
LibVirt : simple API for virtualization Libvirt is a C toolkit to interact with the virtualization capabilities of recent versions of Linux (and other OSes). It is free software available under the GNU Lesser General Public License. Virtualization of the Linux Operating System means the ability to run multiple instances of Operating Systems concurrently on a single hardware system where the basic resources are driven by a Linux instance. The library aim at providing long term stable C API initially for the Xen paravirtualization but should be able to integrate other virtualization mechanisms if needed. Daniel Veillard <veillard@redhat.com>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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