El 8/2/25 a las 19:10, basti escribió:
Now KVM cant use block devices anymore.
Hi. I found a similar problem very recently. I tried to use a virtual machine which I defined a long time ago, but did not use for a long time (probably several years, during which the host was upgraded to Debian 12 in the meantime) What I did was to undefine the machine (which removes its xml snippet at /etc/libvirt/qemu) and install it again with virt-manager, using the same LVM logical volume as the disk. After that, it worked again, and I also noticed the small change in the xml file. I had this: - <emulator>/usr/bin/kvm</emulator> - <disk type='file' device='disk'> - <driver name='qemu' type='raw'/> - <source file='/dev/k/mymachine'/> and now I have this: + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw' cache='none' io='native' discard='unmap'/> + <source dev='/dev/k/mymachine'/> In the above, "k" is the name of my LVM group, so the disk was really a device, not a file, and maybe that's why it did not want to work with the old configuration. Hope this helps. Thanks.
