[arch-releng] ISO 2014.11.01: installing packages may cause system failure

[Peter Mattern]

As of ISO 2014.11.01 attempts to install packages within the live system 
itself can cause complete system failure, apparently due to problems 
affecting device mapper.

The problem is a regression that can't be seen with ISO 2014.10.01.
It doesn't always appear and I couldn't find out the exact conditions. 
But it seems the number / volume of packages that are about to be 
installed has to exceed some kind of threshold.
Also, it doesn't affect running pacstrap the usual way.

Attaching journalctl output from a KVM/QEMU instance (behaviour is the 
same booting "bare metal", though).

Regards.