OK, I will attempt to update the OS to 3.9 but have some basic NewBie HD questions:
I have the latest 3.9 CD but do not have enough space of my BOOT drive - DH0: - to install 3.9 OS . I do have 2 other SCSI drives (DH1, DH2) in my A2000 that I can use but not sure how to make them Active after I install the OS? Is is just a question of installing the 3.9 on one of these drives and than using the the Amiga Early Startup Control Screen to select new "Boot Options"? ( rebooting your Amiga while holding down both mouse buttons.)?
Not sure of the actual workflow for getting one of these drives to work as a new BOOT drive.
Thanks
There is no "active" partition on AmigaOS. You can make any number of bootable partitions. The "bootable" flag is set or reset for each partition in HDToolbox. HDtoolbox also lets you set a boot priority for each bootable partition.
Which bootable partition will be "the" boot partition is derived from the boot priorities. The partition in the system (from all hard drives) which has the highest priority (the highest value) will be it. This way you can even put your primary boot partition on the last harddrive on the SCSI chain. It does not matter where it is as long as it has the highest priority.
If you have multiple partitions with the same priority, the one which comes first in the list is used. (The list in the early startup menu.)
Be aware that floppy drives have boot priorities, too. IIRC DF0 has prio 10. So if you set your harddrive's prio to 11 or higher, you won't be able to boot from floppy any more (unless you remove the harddrive or change its boot prio or use the early startup menu).
Changes in the early startup menu are only temporary. They don't even survive the OS 3.9 ROM update. This means if you want to boot OS 3.9 from another partition, you have to select it twice. After selecting it the first time hold down both mouse buttons immediately again and select it a second time. If you don't do this, then only the ROM update is loaded and then the normal boot partition is used.
