Description of problem:
During install of rawhide, my system (1GB ram) would slow to a crawl after
installing about 800 packages. When looking at /proc/meminfo, almost all of
memory is in Cached.

/tmp is a ramfs, and it seems that anaconda keeps packages in
/tmp/cache/anaconda-base-<date>.ppc/, even after installing them. So after
downloading and installing ~800MB worth of packages, the machine runs out of ram
and starts to page like crazy. Progress slows to a crawl.

This is when installing from NFS share, where I don't see a need to cache at
all. And even if installing from for example HTTP sources, the rpm should be
deleted after installing it.


Version-Release number of selected component (if applicable):
Rawhilde as of 20071212

How reproducible:

Steps to Reproduce:
1.Start NFS install on machine with 1GB ram
2.Select install options such that >800MB of RPMs are to be installed
3.Watch it start at a good pace, and slow to a crawl
  
Actual results:


Expected results:


Additional info: