I have exactly the same problem and I can also give sufficent details about the issue.
1. How exactly did you partition the drive?
-default partitioning. 5GB for hda1 boot partition and 180 for hda5 swap partition.
2. What partition is Feather supposed to be on?
It is located at /dev/hda1 If I mount it I am also able to see that the files actually have been installed.
3. Do you have any other OSes on the system, and what partition(s) are they located on?
-I usedo to have debian etch, but it got formatted away during the installation of feather linux.
4. When you get the error message, from where have you chosen the OS? The LiLO or GRUB boot menu installed by Feather? The LiLO/GRUB boot menu installed by another distribution?
-A few weeks ago I tried feather. It was unable to boot and the bios was unable to locate an OS. After that I installed debian etch, used it for a while and installed feather for the second time. This time the grub from debian remained, but it gives me the error 15, which means it cannot find the stuff it is supposed to boot. LILO was supposed to be installed by feather, but apparenlty it didn't replace grub at all. It seems that my grub is still living in debianic times and expects to find debian somewhere.
5. When you get the error message, which OS have you chosen?
- No decisions were available at any point.
6. Is that the exact message, "Error Finding Operating System"? If not, what is the exact message?
-I cannot exactly remembet the exact error message but it had the same idea. Perhaps it said "operating systen not found" or something similar with the same meaning. Ofcourse nowadays when I have grub it doesn't say that any more. It says exactly "loading grub... please wait. Error 15" I checked error 15 from google and I read something from a gentoo website about the same subject. It suggested me to do certain tricks but they didn't seme to have any effect.
http://www.gentoo.org/doc/en/grub-er...tyle=printable
I tried to see what's in /boot and it really had some interesting looking files that might be kernel images. At least the looked like that to me.