[Libguestfs] Virt-install, virt-customize, virt-builder

Hello everyone, i got 2 questions and I hope you could help me ? * is it possible to specify extra options of qemu-img (when creating/building image/os using virt-install and virt-builder ?) * Is it possible to rebuild another os (in the manner of virt-builder) on an existing image file but by using VIRT-CUSTOMIZE? Best regards, -- Nguetchouang Ngongang Kevin ENS de Lyon https://perso.ens-lyon.fr/kevin.nguetchouang/