[Debian-uk] Crashes during apt-get install ca-certificates-java: IPv6 involvement?

[Dan]

Dear All,

Sorry that this is a bit off of the usual centre of gravity of this
list in topic space, but...

I (newly) have a Debian system in a chroot on Android.

On this system, every time I try to apt-get install
ca-certificates-java (version 20100412), the installation process gets
as far as printing "creating /etc/ssl/certs/java/cacerts..." (I think
this message comes from line 111 of ca-certificates-java.postinst),
then the system reboots.

There is a known similar behaviour with openssh-server, which results
from sshd starting to listen on IPv6 by default
(cf. <http://evilzone.org/android/debian-on-android/>).

So: does anyone know whether the installation process for
ca-certificates-java would be expected to use any IPv6 connections -
and if so, whether it can be configured to use IPv4 instead - please?

Thanks in advance.

-- 

Kind regards,

Dan