The libguestfs-test-tool run ends with a timeout ("Alarm clock") after qemu has complained about two missing files:
,---- | [02004ms] /usr/bin/qemu-system-x86_64 \ | -global virtio-blk-pci.scsi=off \ | -nodefconfig \ | -enable-fips \ | -nodefaults \ | -display none \ | -machine accel=kvm:tcg \ | -cpu host \ | -m 500 \ | -no-reboot \ | -rtc driftfix=slew \ | -no-hpet \ | -global kvm-pit.lost_tick_policy=discard \ | -kernel /var/tmp/.guestfs-1000/appliance.d/kernel \ | -initrd /var/tmp/.guestfs-1000/appliance.d/initrd \ | -device virtio-scsi-pci,id=scsi \ | -drive file=/tmp/libguestfs52T0nj/scratch.1,cache=unsafe,format=raw,id=hd0,if=none \ | -device scsi-hd,drive=hd0 \ | -drive file=/var/tmp/.guestfs-1000/appliance.d/root,snapshot=on,id=appliance,cache=unsafe,if=none,format=raw \ | -device scsi-hd,drive=appliance \ | -device virtio-serial-pci \ | -serial stdio \ | -device sga \ | -chardev socket,path=/tmp/libguestfs52T0nj/guestfsd.sock,id=channel0 \ | -device virtserialport,chardev=channel0,name=org.libguestfs.channel.0 \ | -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=screen' | Could not open option rom 'linuxboot_dma.bin': No such file or directory | Could not open option rom 'sgabios.bin': No such file or directory | Alarm clock `---- After one installs sgabios, we at least get an error message that looks somewhat meaningful. ,---- | ... | -append 'panic=1 console=ttyS0 udevtimeout=6000 udev.event-timeout=6000 no_timer_check acpi=off printk.time=1 cgroup_disable=memory root=/dev/sdb selinux=0 guestfs_verbose=1 TERM=screen' | Could not open option rom 'linuxboot_dma.bin': No such file or directory | \x1b[1;256r\x1b[256;256H\x1b[6n | Google, Inc. | Serial Graphics Adapter 12/07/13 | SGABIOS $Id: sgabios.S 8 2010-04-22 00:03:40Z nlaredo $ (mjt@gandalf) Sat Dec 7 15:39:53 UTC 2013 | Term: 80x24 | 4 0 | SeaBIOS (version Debian-1.8.2-1) | Booting from Hard Disk... | Boot failed: not a bootable disk | | Booting from Floppy... | Boot failed: could not read the boot disk | | No bootable device. | Alarm clock `---- Cheers, -Hilko