When doing a NFS install for ES-3 from a directory containing all ES-3
isos, the install fails on hwdata lookup.

What happens is the installer mounts a src iso as the second disc, and
can not find the hwdata rpm on it. Moving the binary isos to an empty
directory fixes it, but this breaks our nfs server layout (which works
for the 5 other RH releases we share internally).

Not working nfs dir :

rhel-3-docs-emea.iso
rhel-3-i386-es-disc1.iso
rhel-3-i386-es-disc2.iso
rhel-3-i386-es-disc3.iso
rhel-3-i386-es-disc4.iso
rhel-3-i386-src-disc1.iso
rhel-3-i386-src-disc2.iso
rhel-3-i386-src-disc3.iso
sha1sums.asc

Working nfs dir :

rhel-3-i386-es-disc1.iso
rhel-3-i386-es-disc2.iso
rhel-3-i386-es-disc3.iso
rhel-3-i386-es-disc4.iso

File sha1 sums :

ac78e4afbf3b57c5149b6dde66c6227059109381 *rhel-3-docs-emea.iso
5b27fd859722f36a16b9b1795a15805d19782ff4 *rhel-3-i386-es-disc1.iso
79769abf51b8052dcb075a8205635a9075cceee3 *rhel-3-i386-es-disc2.iso
d808c3f22a1381796162c5e9a367b45fc005281c *rhel-3-i386-es-disc3.iso
06be1716f845055affd43a0b81b2a2b80c585305 *rhel-3-i386-es-disc4.iso
e246d8b8138b46a747cb29c80e19872aa663b0b8 *rhel-3-i386-src-disc1.iso
3e3acd8b2cc124fe57f7a2c4e78456ed7bd20140 *rhel-3-i386-src-disc2.iso
725bd728d756ddec01769366f244ba109ef24bb1 *rhel-3-i386-src-disc3.iso