hackphil@laptop:~$ ls
debianetch.img  Desktop  gprename-1.7

hackphil@laptop:~$ qemu -m 512 -hda debiantesting.img -cdrom /dev/cdrom -boot d

Could not configure '/dev/rtc' to have a 1024 Hz timer. This is not a fatal
error, but for better emulation accuracy either use a 2.6 host Linux kernel or
type 'echo 1024 > /proc/sys/dev/rtc/max-user-freq' as root.
You do not have enough space in '/dev/shm' for the 512 MB of QEMU virtual RAM.
To have more space available provided you have enough RAM and swap, do as root:
umount /dev/shm
mount -t tmpfs -o size=528m none /dev/shm
Or disable the accelerator module with -no-kqemu

hackphil@laptop:~$