Разве aqemu не должен при установке тянуть за собой сам qemu и сопутствующие? В бранче 5.1 этого не наблюдается.

[root@wind ~]# apt-get install aqemu
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
  libvncserver
The following NEW packages will be installed:
  aqemu libvncserver
0 upgraded, 2 newly installed, 0 removed and 0 not upgraded.
Need to get 1083kB of archives.
After unpacking 3416kB of additional disk space will be used.
Do you want to continue? [Y/n] 

В то же время qtemu (тоже оболочка для qemu) все ок:

[root@wind ~]# apt-get install qtemu
Reading Package Lists... Done
Building Dependency Tree... Done
The following extra packages will be installed:
  libaio libvde2.2 qemu qemu-common qemu-system qemu-user
The following NEW packages will be installed:
  libaio libvde2.2 qemu qemu-common qemu-system qemu-user qtemu
0 upgraded, 7 newly installed, 0 removed and 0 not upgraded.
Need to get 6215kB of archives.
After unpacking 45.2MB of additional disk space will be used.
Do you want to continue? [Y/n]

Вывод - aqemu не хватает зависимостей..