Description of problem:
During an installation on a low-memory machine according to "Installation Guide
Appendix B. Installing Without Media" (booting from vmlinuz and initrd.img only,
and then use ftp method to retrieve other files.). An error occurred, saying:

Unable to read group information from repositories. This is a problem with the
generation of your install tree.

It also give an error about lcpci in Ctrl-Alt-F3 window.

This error message is from doRepoSetup() (in /usr/lib/anaconda/yuminstall.py)
for a failure of doGroupSetup() (also in yuminstall.py). This is because
doGroupSetup() calls iutil.isVmware() (in /usr/lib/anaconda/iutil.py), and it
then calls hard-coded /usr/sbin/lspci, which is not included in minstg2.img
(loop-back mounted at /mnt/runtime).

Version-Release number of selected component (if applicable):
anaconda of the version included in released Fedora 9 

How reproducible:
Always

Steps to Reproduce:
1. Start an installation on a low-memory machine according to "Installation
Guide Appendix B. Installing Without Media" (booting from vmlinuz and initrd.img
only, and then use ftp method to retrieve other files.)
2.
3.
  
Actual results:
Installation stalls with the message above.

Expected results:
Installation continues.

Additional info:
Possible solutions are:
1. add /sbin/lspci to minstg2.img
2. change the implementation of isVmware() to not use lspci.

A brute force ugly workaround is to put some executable file with the name
"lspci". To do it, I had to create a disk image with the content of /usr/sbin,
and remount
/usr/sbin.

cd /mnt/sysimage/boot
cp -ir /usr/sbin .
dd if=/dev/zero of=sbin.img bs=512 count=16384
/usr/sbin/mkfs.ext2 sbin.img
mount -t ext2 -o loop sbin.img /usr/sbin
cp -ir sbin/* /usr/sbin
ln -s /usr/bin/busybox /usr/sbin/lspci

The executable file could be anything, so long as it does not return a string
with the word "vmware".