Windows 10 | disable network interface ip4 auto configuration

You have had defined a static ip but ipconfig shows your address as an alias only and the main address is an ‘Autoconfiguration IPv4 Address’ like 169.254…. Here‚Äôs how to fix this issue: INTERFACE is the name of the interface > netsh interface ipv4 set interface INTERFACE dadtransmits=0 store=persistent > net stop dhcp to disable […]

kvm | qemu | qcow2 dynamic/sparse disk allocation problem | shrink sparse qcow2 disks howto

In some recent qemu versions there is a problem while creating sparse disks using the virt-manager. Normally the qcow2 format always allocates space dynamically (sparse), but some qemu versions fail at this, they create disks with full expected size. Solution: Create your disks manually: Shrinking existing images: # mv disk.qcow2 disk.qcow2.orig # qemu-img convert -O […]