hdinstall erased wrong partition for swap

[Stephen]

So when I clicked ok I came to a page where I was asked whether I wanted /dev/hda5 to use as a swap partition. I agreed since I thought that he would have rearranged the internal partition map. Only later I realized that there was a message after writing the partition table which was something like "The partition table was written to disk but couldn't be reloaded."

Also included in the warning was a line telling you to re-boot for the changes to take effect which you obviously did not do therefore it over wrote the existing partition that was read from the old table still loaded.