Comment 58 for bug 532733

This should help a little:
I can confirm that this is a problem in rootstock, not just inside qemu or qemu/kvm.
Reproducible on host system.
System output from uname :

user@lucid:~/kvm$ uname -a
Linux lucid 2.6.32-25-generic #44-Ubuntu SMP Fri Sep 17 20:05:27 UTC 2010 x86_64 GNU/Linux

Rootstock command used :

user@lucid:~/kvm$ sudo rootstock --fqdn nexus --login user --password psswd --imagesize 8G --seed ubuntu-netbook,build-essential,openssh-server,nano

This has failed three times in a row, hanging upon :

Unpacking iso-codes (from .../iso-codes_3.12.1-1_all.deb) ...

This essential just hangs the bash shell, terminal still responsive to ctrl-C, utilizes 100% of 1 (one) of my dual cores.
Is there any open issues on rootstock related to this?

Thanks-
DrTheFugitive