On 26 Oct 2023 17:23 +0200, from hans.ullr...@loop.de (Hans): > I installed aqemu (a GUI for qemu), virt-manger (a little bit complex GUI) > and > virtualbox (from Oracle, but without guest-additions annd ext-pack).
You generally shouldn't install multiple hypervisors on the same system. I have seen fairly sternly worded warnings against having VirtualBox and KVM/QEMU installed simultaneously on the same host. (They probably can _coexist_, but trying to _run_ both at the same time may well cause issues.) There should be no problems with using different front-ends for the same hypervisor, however; I regularly use both virt-manager and the command-line utilities (including virt-install and virsh) depending on what I need. > Virtualbox is easy to use, but I like AQEMU, too (it is using KVM). > > Are the other solutions capable, to import and export OVA or VDI? I think you can use `qemu-img convert -f vdi -O qcow2` to convert from a VDI disk image to a QCOW2 or raw disk image, which QEMU/KVM in turn can use. (qemu-img convert can also convert to and from many other formats; see the output of qemu-img --help.) Compared to raw disk images, QCOW2 adds a number of nice features, not least of which disk snapshots. In Debian, qemu-img is packaged in qemu-utils (in Bookworm, at least). Apparently, a OVA is just a tarball of a hard disk image and a XML file describing the VM. It shouldn't be too difficult to convert the disk image and then create a similar KVM VM using the information in the XML file. It looks like there's a tool named virt-v2v which can do the conversion, although I have never had a need to try it. -- Michael Kjörling 🔗 https://michael.kjorling.se “Remember when, on the Internet, nobody cared that you were a dog?”
