Download Atari System V - Developer`s Guide (reduced size)

Chapter 3
TOS Boot Preference
Under TOS, U1e SETBOOT.PRG command brings up U1e
displaying a menu bar with the fol lowing titles:
setboot main screen,
•
Desk, with tbe entry About Setboot... and U1c desk accessories
•
File, conaining
t
tbe menu entry Quit
•
Boot, wiU1 U1e entries
- Set Boot Preference
- Display Boot Preference
- Initialize NVRAM
Help
•
Select About Setboot...
OK to close tbe box.
To quit the program,
from U1e Desk menu to pop up the copyright box.
Select
Select Quit from the File ruenu. You will be prompted to
confirm this action.
To set tbe current value of the boot preference in the
NVRAM, Select Set Boot
Preference from tbe Boot menu. A dialog box with the title Select Preferred
Operating System pops up showing the following radio buuons:
•
TOS
•
Atari System V
•
No Preference
Tile highlighted radio button represents tbe current boot preference in the
NVRAM. No Preference selects the first bootable operating system. To change
the
boot preference, Select tbe radio button of tbe operating
and
Select OK.
system to be booted
A dialog box pops up asking you to reboot tbe system . lllis is
necessary to boot tbe newly selected operating system.
To cancel the dialog box, Select the Cancel button.
Selecting Display Boot Preference from tbe Boot menu opens a dialog box
showing the current boot preference in the NVRAM. Clicking on
OK closes the
dialog box.
If it should ever be necessary to initialize NVRAM because invalid
have affected the checksum,
Select Initialize NVRAM
data values
from the Boot menu. A
dialog box pops up to confirm this action. Initialization clears NVRAM and sets
the checksum.
Tile Help menu offers help boxes for the menu entries in the Boot menu as well
as a general description of the purpose of tbe program .
Following is an example o f how to set the boot preference t o Atari System V
using
SETBOOT.PRG:
I. Execute the SETBOOT.PRG command from the GEM desktop.
2. Select Set Boot Pr.Cerences from the Boot menu; the dialog box with
radio buttons pops up.
3. Change the boot preference to UNIX by selecting the Atari System V
radio button and click on the OK button.
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