A nice feature of GAG is that you can install it to a floppy disk. So I
did. My alternative boot loader, GAG, is on a floppy. And from there I
can startup any OS that resides on my disks.
There is an unistall option. In my case, I can make another bootable
floppy disk with another GAG installed, but I don't thing it will
chage.
So are you saying that you boot from A:\ with GAG?
What happens when you boot to the hard drive, bypassing the floppy?
I assume GAG alters the master boot record and hides partitions as
required, in which case the last booted OS should appear.
If that's the case then you can install XOSL straight to the hard
drive - but to be on the safe side you should install it on the first
partition...that's to say, the first OS on the drive.
It installs from a floppy and backs up the current MBR, so if all else
fails you can uninstall it and revert to your previous system.
The most important choice you have to make in the installation is
where to install XOSL to - and in your case you'd select 'install to a
DOS drive'. If you select 'Install to a dedicated partition' it will
wipe whatever's on the target partition.
You can review the settings before you actually press the final
install button - and if you back out before that point nothing will
have changed.
Regards,